10 Best Backflow Preventer Test Kit (November 2026) Expert Guide

Protecting clean water supplies requires reliable testing tools that ensure backflow preventers function correctly under pressure. A quality test kit allows professionals and homeowners to verify system integrity efficiently without risking contamination or regulatory fines. These devices are essential for maintaining safety standards across irrigation and industrial plumbing networks.

We evaluated ten distinct products ranging from comprehensive portable kits to specific replacement components and valves. Each entry was assessed based on build quality, compatibility with standard assemblies, ease of use, and overall durability in outdoor environments. Our analysis focuses on real-world performance and adherence to industry specifications for accurate testing results.

Every pick in this list highlights unique strengths for different testing scenarios and budget levels. While specific pricing fluctuates based on market conditions, the core value and functionality remain consistent across these trusted brands. Use these insights to select the right equipment for your specific backflow prevention and maintenance needs today.

Top 3 Picks for Best Backflow Preventer Test Kit

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Top 10 Best Backflow Preventer Test Kit in 2026 Compared

The following table provides a side-by-side overview of all ten products to highlight key specifications and use cases for each item.

1. Watts TK-9A Series Kit – Best Overall Backflow Preventer Test Kit

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Watts TK-9A Series Kit

Portable testing device

175 psi max pressure

Includes carrying case

Suitable for RPZA

The Watts TK-9A Series stands out as the most comprehensive solution for professional backflow testing needs. Designed specifically for RPZA and DCVA assemblies, it includes every component required for thorough system verification. This kit ensures compliance with USC and ASSE 5000 standards through its precise gauge and adapter setup.

Pros

• Comprehensive testing kit
• Lightweight handheld design
• Shock-resistant carrying case
• Accurate pressure differentials
• Fits all standard assemblies

Cons

• Limited to specific assemblies
• Price point high

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Its compact and lightweight design makes it ideal for technicians who travel between multiple job sites daily. The shock-resistant carrying case protects the gauges and hoses during transport, ensuring longevity in rugged field conditions. The inclusion of female-threaded swivel couplings simplifies connections to various test cocks without needing extra adapters.

While this kit is robust, it is primarily focused on reduced pressure zone and double check valve assemblies which might limit utility for other valve types. The price point reflects its professional-grade build and comprehensive nature, making it an investment rather than a casual tool. However, accuracy and durability justify the cost for frequent users.

Professionals seeking a reliable all-in-one solution for routine inspections should prioritize this model. It provides the necessary tools to detect fouled check valves and pressure issues that visual inspections miss. For those responsible for maintaining water safety standards, this kit offers the precision and portability needed for efficient workflows.

Complete Testing Ecosystem

The kit includes all necessary hoses, adapters, and securing straps to ensure a seamless testing process without needing extra purchases.

Durability in Field Conditions

Built with a shock-resistant case and maximum working pressure of 175 psi to withstand daily use in diverse environments.

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2. 4 PCS 1/8 Test Cock – Best Budget Backflow Preventer Test Kit Component

4.7Editor scoreCheck price on Amazon

4 PCS 1/8 Test Cock

Brass material construction

1/8 male threaded

Non-potable water only

Includes PTFE tape

This four-pack of test cocks serves as an essential component for maintaining existing backflow preventer systems efficiently. Made from high-quality brass, these units offer rust-resistant properties suitable for outdoor sprinkler and irrigation environments. The package includes PTFE tape to ensure a leak-free seal during installation on standard 1/4-inch female threaded connections.

Pros

• Durable high-quality brass
• Cost-effective replacement option
• Ergonomic handle design
• Includes sealing tape
• Rust and corrosion resistant

Cons

• Component only not a kit
• Non-potable water only

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The ergonomic handle design allows for quick tightening and removal by hand without requiring special wrenches or plumbing tools. This feature significantly reduces time spent during seasonal maintenance and pressure testing tasks. The compact design fits standard dimensions perfectly for components with 1/8-inch NPT male threaded connections to ensure compatibility.

While these are not complete test kits, they are vital for users who need to replace aging or damaged test cocks on existing assemblies. The focus on non-potable water applications means they are specifically intended for irrigation systems rather than drinking water lines. Verification of connection dimensions before purchasing is crucial to avoid fit issues.

Homeowners and facility managers looking for affordable replacements for irrigation system maintenance will find this value. It offers reliable performance at a fraction of the cost of major assemblies. This component ensures your system remains functional and leak-free without needing to replace the entire backflow preventer unit.

Seamless Installation Process

The ergonomic handle and included PTFE tape enable quick setup without specialized tools for routine maintenance tasks.

Corrosion Resistance

High-quality brass construction ensures longevity in outdoor environments where rust and corrosion are common concerns.

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3. Febco 765 1-1/2 Inch – Best Premium Backflow Preventer Test Kit Assembly

4.6Editor scoreCheck price on Amazon

Febco 765 1-1/2 Inch

Lead-free bronze body

150 psi max

Freeze sensor ready

USC FCCCHR Manual

The Febco 765 Bronze Assembly represents the gold standard for mechanical protection against cross-connection contamination hazards. Designed with lead-free bronze, it provides durability and reliability for potable water systems in residential and commercial settings. It meets the strict specifications of the USC FCCCHR Manual ensuring full compliance with safety regulations.

Pros

• Lead-free bronze construction
• Comprehensive water protection
• Compatible with freeze sensors
• Meets strict standards
• Versatile commercial application

Cons

• Requires professional setup
• Higher cost than plastic

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Its advanced features include compatibility with SentryPlus Alert technology to signal personnel when temperatures near freezing points. This proactive capability protects facility equipment and ensures continuous operation in varying climates. The assembly includes resilient seated shutoffs and test cocks to facilitate accurate pressure testing and maintenance checks easily.

The investment in this premium assembly is justified by its ability to handle health hazard and non-hazard back-siphonage scenarios. While it requires careful installation due to its precision components, the longevity and performance are unmatched. The plastic bonnet adds an extra layer of protection against freeze damage to extend the system life significantly.

Facility managers and industrial plant operators prioritizing water safety and regulatory compliance should choose this model. It serves critical applications like cooling towers, laboratories, and swimming pools where backflow risks are high. This assembly ensures clean drinking water supplies remain safe from toxic or non-toxic liquids effectively.

Advanced Freeze Protection

Built-in freeze sensor compatibility alerts personnel to low temperatures preventing damage to valves and piping.

Regulatory Compliance

Meets the specifications of the USC FCCCHR Manual ensuring your system passes all required safety inspections.

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4. 4 PCS 1/8 Test Cock – Reliable Replacement Component

4.7Editor scoreCheck price on Amazon

4 PCS 1/8 Test Cock

Brass material construction

1/8 male threaded

Non-potable water only

Includes PTFE tape

This four-pack of test cocks offers a practical solution for repairing worn out connections on irrigation backflow systems. Constructed from durable brass, these units resist rust and corrosion even when exposed to harsh outdoor conditions regularly. The inclusion of PTFE sealant tape ensures that threads seal properly without leaks during routine maintenance.

Pros

• Durable high-quality brass
• Cost-effective replacement option
• Ergonomic handle design
• Includes sealing tape
• Rust and corrosion resistant

Cons

• Component only not a kit
• Non-potable water only

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Installation is straightforward thanks to the ergonomic handle design that allows for hand tightening without tools. This convenience saves time for homeowners performing seasonal checks on their sprinkler systems. The dimensions match standard 1/4-inch female threaded connections on backflow preventers equipped with 1/8-inch NPT male connections precisely.

These components are specifically intended for non-potable water applications so they should not be used on drinking water lines. Users must verify the connection dimensions of their existing devices before purchasing to ensure a perfect match. While simple, they play a critical role in maintaining the integrity of the testing interface.

For those needing affordable replacements to restore function to existing valves, this pack provides value. It eliminates the need to buy a whole new assembly just to fix a leaky test port. This component ensures your irrigation system remains operational and efficient throughout the growing season.

Ease of Maintenance

The ergonomic handle allows for quick manual operation and replacement without requiring plumbing tools.

Corrosion Resistance

High-quality brass construction ensures the cock withstands outdoor elements without rusting or leaking.

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5. 1 720A Brass PVB – Durable Irrigation Protection

4.2Editor scoreCheck price on Amazon

1 720A Brass PVB

400 PSI rating

10-year warranty

Heavy brass body

Repair kit included

The 1-inch 720A Brass Pressure Vacuum Breaker provides robust protection against backflow in non-potable irrigation systems. It features auto-sensing PVB tech that instantly blocks polluted water from flowing back into clean water supplies. The heavy brass body is thickened to resist rust and corrosion while supporting high-pressure applications up to 400 PSI.

Pros

• Auto-sensing PVB tech
• Max 400PSI rating
• Free 10-year warranty
• Repair kit included
• 1 inch universal size

Cons

• Disassembly breaks seal
• Heavy brass body

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A notable feature is the free complete repair kit that includes all spare parts needed to fix minor leaks or wear. This adds significant value by extending the service life without needing expensive replacements. The 10-year warranty further ensures long-term performance with 24/7 customer service support for any installation or maintenance issues.

While the brass body is durable, it requires careful handling since disassembly breaks the PVB seal permanently. The engraved flow arrows help speed up assembly by 30 percent ensuring the correct direction is maintained during setup. This product is ideal for fire lines, industrial systems, and residential sprinklers needing reliable backflow prevention.

Homeowners and industrial facilities looking for a balance of durability and cost-effectiveness will appreciate this assembly. It offers comprehensive protection without the complexity of more advanced assemblies. The included repair kit and long warranty make it a low-risk investment for water safety.

Comprehensive Repair Support

The included repair kit covers all oxidation vulnerable parts allowing easy fixes without extra accessories.

Installation Efficiency

Engraved flow arrows speed up assembly by 30% ensuring correct installation without specialized tools.

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6. 3/4 Inch PVB Assembly – Compact Irrigation Solution

4.5Editor scoreCheck price on Amazon

3/4 Inch PVB Assembly

Anti-siphon protection

400 PSI max rating

Marked flow arrow

Lawn irrigation use

This 3/4 inch pressure vacuum breaker assembly is designed specifically for anti-siphon protection in lawn irrigation systems. It helps stop back-siphonage by breaking vacuum conditions before water can flow back toward the clean water supply. The heavy duty brass construction offers excellent corrosion resistance for outdoor use over long periods.

Pros

• Anti-siphon protection
• 400 PSI max rating
• Clear flow markings
• Complete assembly included
• Installer-friendly design

Cons

• Not for repair kit use
• 3/4 inch only

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Installation is straightforward with a compact body and clearly marked flow-direction arrow to simplify setup and maintenance. The centerline test plug allows for easy inspection without needing to disassemble the main unit. It fits compatible garden, lawn, and outdoor water line applications with a maximum pressure rating of 400 PSI.

While it is a complete assembly, it is not a repair kit so users should handle it with care during installation. It is not designed for pressure regulation or reduced-pressure-zone backflow applications. However for standard non-potable downstream lines it provides the necessary safety against contamination effectively.

Gardeners and homeowners needing reliable protection for sprinkler systems will find this unit practical. It balances durability with ease of use for seasonal setup tasks. Ensuring the 3/4 inch connection matches your system is key to a secure fit and leak-free operation.

Anti-Siphon Reliability

Breaks vacuum conditions to prevent irrigation water from contaminating the clean water supply line.

Installer Friendly Features

Marked flow arrows and centerline test plugs simplify setup and inspection for routine maintenance.

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7. Febco 765 2 Inch – High Capacity Protection

4.6Editor scoreCheck price on Amazon

Febco 765 2 Inch

Lead-free bronze body

150 psi max

Freeze sensor ready

Industrial water services

The Febco 765 Bronze Assembly in 2-inch size offers ultimate mechanical protection for continuous pressure applications. It is designed to protect against health hazards and back-siphonage of toxic liquids meeting strict USC FCCCHR Manual specifications. The lead-free bronze construction ensures durability and low head loss for efficient water flow.

Pros

• Health hazard protection
• Maximum protection essential
• SentryPlus Alert tech
• Freeze damage protection
• High performance bronze

Cons

• Heavy industrial unit
• Higher price point

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A key advantage is the freeze sensor compatibility which signals facility personnel when temperatures reach freezing points. This feature is vital for hospitals, morgues, and chemical plants where water safety is critical. The plastic bonnet protects internal components from freeze damage while the spring-loaded check valve ensures consistent performance.

This unit is ideal for installations where maximum protection is essential such as boiler feeds and industrial water services. It also serves irrigation systems that require robust backflow prevention standards. While it is a larger unit, its reliability and compliance features make it a top choice for commercial settings.

Facility managers needing robust protection for large-scale water lines should consider this assembly. It combines quality design with practical features like freeze alerts and durable materials. Ensuring proper installation and maintenance will keep your potable water safe from contamination risks effectively.

Health Hazard Safety

Protects potable water against cross-connection contamination hazards in health-critical facilities.

Temperature Monitoring

SentryPlus Alert technology warns staff of freezing temperatures to prevent pipe damage.

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8. 2 Pack 3/4 Inch PVB – Multi-Zone Value Pack

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2 Pack 3/4 Inch PVB

Two unit pack

400 PSI max rating

Compact body design

Garden water lines

This two-pack of 3/4 inch backflow preventers offers excellent value for properties with multiple irrigation zones. Each unit provides reliable anti-siphon protection to stop back-siphonage before water flows back to the clean water supply. The heavy duty brass construction ensures corrosion resistance and outdoor durability for long-term use.

Pros

• Multi-unit cost savings
• Anti-siphon protection
• 400 PSI rating
• Clear flow direction
• Installer-friendly design

Cons

• Two units only
• Not a full system

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Installation is simplified by compact bodies with clearly marked flow-direction arrows and centerline test plugs. This makes setup and routine maintenance easier for homeowners managing multiple sprinkler systems. The maximum pressure rating of 400 PSI fits garden and lawn water line applications perfectly without issues.

While these are complete assemblies, they are not repair kits so care is needed during installation. It is important to confirm the connection size and installation requirements before ordering to ensure compatibility. These units provide non-potable downstream protection effectively for various watering setups.

Homeowners needing multiple protectors for a large property will benefit from this bundle. It saves time and effort compared to buying units individually. Ensuring each zone has proper protection helps maintain safe water systems across the entire landscape.

Zone Coverage

Includes two complete assemblies allowing you to protect multiple irrigation zones efficiently.

Durability

Thickened brass construction resists corrosion and outdoor elements for long-lasting performance.

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9. GASHER 3Pcs Test Cock – Quality Component Option

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GASHER 3Pcs Test Cock

Solid brass construction

Slotted control screw

PTFE tape included

1/8 x 1/4

The GASHER 3Pcs Test Cock set provides high-strength solid brass components for durable plumbing environments. Each valve is designed with precise thread sizing for seamless integration with compatible test gauge setups. The slotted control screw allows for easy manual operation using a standard flathead screwdriver during testing.

Pros

• High-strength solid brass
• Slotted control screw
• Includes PTFE tape
• Precise thread sizing
• Ready-to-install kit

Cons

• Component only
• Requires manual operation

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Ready-to-install kits include three brass test cocks and one roll of PTFE thread sealant tape for leak-free connections. This convenience saves time and ensures that all necessary materials are on hand for a quick repair. The brass construction offers superior corrosion resistance for both indoor and outdoor applications.

These components are engineered specifically for lawn sprinkler backflow preventers and irrigation valves to facilitate accurate system diagnosis. It is essential to verify dimensions before purchasing to ensure the correct fit with existing systems. While not a full test kit, they are vital for maintaining the testing interface.

Professionals and DIYers needing reliable replacement parts will find this value. It ensures that your backflow system remains functional and leak-free without major replacements. Quality construction and ease of use make these a smart choice for routine maintenance.

Precise Fit

Standard 1/8 Male NPT to 1/4 Female NPT threading ensures clean engagement with gauges.

Tool Flexibility

Slotted control screws allow for quick opening and shutting using a common flathead screwdriver.

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10. 2 Pack 1 Inch PVB – Large Zone Value Pack

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2 Pack 1 Inch PVB

Two unit pack

400 PSI max rating

1 inch connection size

Lawn irrigation use

This two-pack of 1-inch backflow preventers offers reliable anti-siphon protection for larger irrigation systems. The heavy duty brass construction ensures corrosion resistance and outdoor durability with a maximum pressure rating of 400 PSI. Each unit functions as a sprinkler backflow valve to prevent water from flowing back toward the clean supply.

Pros

• Two unit pack
• 400 PSI rating
• Clear flow arrows
• Anti-siphon protection
• Installer-friendly design

Cons

• Not for repair use
• 1 inch only

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Installation is simplified with a compact body and clearly marked flow-direction arrow to guide assembly. The centerline test plug supports easy inspection and routine maintenance without complex tools. These units are suitable for residential commercial and irrigation pipelines needing robust backflow protection.

While they are complete assemblies, they are not repair kits so care must be taken during setup. It is essential to confirm connection size and local requirements before ordering to avoid fit issues. These units provide non-potable downstream protection effectively for garden watering setups.

Property owners managing multiple zones with 1-inch lines will benefit from the bundle. It saves time compared to buying individual units and ensures consistent protection across the property. This value pack is a smart choice for upgrading lawn irrigation safety standards.

Consistent Protection

Includes two complete 1-inch assemblies to protect multiple zones with identical reliability.

Durability

Thickened brass body resists rust and supports high pressure for long outdoor service life.

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Buying Guide – How to Choose the Best Backflow Preventer Test Kit

Selecting the right test kit or component requires understanding your specific system needs and regulatory requirements. We outline the key factors to consider for a reliable purchase.

System Compatibility

Ensure the test kit or valve matches your specific backflow preventer assembly such as RPZA or DCVA. Different systems require different test cocks and gauges to provide accurate results. Verify thread sizes and connection types before purchasing to avoid compatibility issues.

Match the kit components to your existing assembly type and thread specifications to ensure a secure fit.

Material Quality

Look for durable materials like brass or bronze that resist rust and corrosion in outdoor environments. Plastic components may degrade faster when exposed to UV light and extreme weather conditions. High-quality construction ensures the device lasts longer and maintains accurate readings over time.

Choose brass or bronze construction for long-lasting durability and resistance to environmental damage.

Pressure Ratings

Check the maximum working pressure of the kit or assembly to ensure it fits your system requirements. Most standard kits handle around 175 psi but some assemblies support up to 400 psi. Using equipment with inadequate pressure ratings can lead to dangerous failures during testing.

Verify the pressure rating matches your system's maximum PSI to ensure safety and accuracy.

Compliance Standards

Ensure the product meets relevant standards such as USC FCCCHR or ASSE 5000 for regulatory approval. Many local codes require specific certifications to pass inspections and avoid fines. Non-compliant devices may not be legally accepted for backflow testing.

Choose units that meet USC FCCCHR or ASSE 5000 standards to pass local inspections.

Included Accessories

A complete kit should include necessary hoses adapters and seals to facilitate testing without extra purchases. Look for items like PTFE tape or carrying cases to protect your investment. Accessories that simplify setup save time and effort during routine maintenance.

Select kits that include hoses adapters and seals to ensure a complete and convenient testing process.

Ease of Use

Ergonomic handles and clear flow arrows simplify installation and operation for both professionals and homeowners. Tools that require minimal effort reduce the time spent on seasonal checks. Simple designs help prevent errors during setup and testing.

Prioritize models with ergonomic handles and clear markings for straightforward setup and testing.

Warranty and Support

A solid warranty such as a 10-year offer ensures protection against manufacturing defects. Look for brands that provide customer support for installation or maintenance questions. Reliable support helps resolve issues quickly and extends the life of your equipment.

Choose products with long warranties and accessible customer support to protect your investment.

Portability and Storage

For technicians who move between job sites, a shock-resistant carrying case is essential for protection. Lightweight designs make transport easier without compromising durability or accuracy. Proper storage keeps your tools organized and ready for use.

Select lightweight kits with sturdy carrying cases to protect components during transport and storage.

How to Use and Care for Your Backflow Preventer Test Kit

Begin by verifying your system is pressurized and the shut-off valves are open. Connect the test hoses to the test cocks ensuring seals are tight to prevent leaks during testing. Use a calibrated gauge to read pressure differentials accurately.

After testing, slowly close valves to release pressure before disconnecting any hoses. Clean the gauges and adapters immediately to remove water residue and debris that could cause corrosion. Store the components in the provided carrying case to protect them from physical damage.

Schedule regular maintenance at least once a year or as required by local regulations. Inspect seals and threads for wear before reusing components to ensure safety. Following these steps helps maintain accurate performance and extends the life of your testing tools.

Frequently Asked Questions

Why is a backflow preventer test kit essential?

It ensures your system blocks contaminated water from entering clean water lines maintaining public health. Regular testing identifies issues before they cause significant damage or health risks. It is often required by law to prove compliance with safety standards.

What materials should I look for in test components?

Solid brass or bronze offers superior resistance to rust and corrosion compared to plastic. These materials ensure longevity especially in outdoor irrigation or industrial environments. High-quality metal also maintains structural integrity under high pressure.

How often should I test my backflow preventer?

Local codes typically require annual testing to ensure continued protection against backflow. Frequent use or harsh environments may require more frequent checks to detect wear. Always consult local regulations to determine the exact testing schedule needed.

Can I use any test kit with any backflow preventer?

No kits are specific to certain assemblies such as RPZA or DCVA models. Using the wrong kit can lead to inaccurate readings or damage. Verify compatibility with your specific system before purchasing to avoid issues.

What if my test results are inconsistent?

Inconsistent results often indicate worn seals or damaged gauges that need replacement. Check all connections for leaks before starting the test to ensure accuracy. Calibrating your equipment or replacing seals often resolves these inconsistencies quickly.

Do I need a professional to test my system?

Many jurisdictions require certified professionals to perform official tests for compliance. DIY testing may be sufficient for preliminary checks but official documentation requires certified results. Hiring a pro ensures your report is accepted by local authorities.

Final Thoughts on Choosing the Best Backflow Preventer Test Kit

We highlighted ten distinct options ranging from full portable kits to specific replacement components and valves. The Watts kit leads for comprehensive professional use while the Febco units offer premium commercial-grade protection. Replacement test cocks provide budget-friendly solutions for maintaining existing systems effectively.

When choosing prioritize compatibility with your specific assembly type and compliance with local regulations. Ensure the materials can withstand your environment's pressure and temperature conditions. Quality construction and included accessories save time and prevent costly leaks or damage.

Prices for these items fluctuate based on market demand and availability. Always check current listings for the most up-to-date pricing before purchasing. Secure the right kit today to protect your water supply and remain compliant with standards.

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