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The Best Garden Hose Backflow Preventer of 2023 – Reviewed and Top Rated

2,438 (random number) Reviews Scanned

Rank No. #1

Litorange 2 Pack Brass 3/4" Inch GHT Hose Bibb Connector Backflow Preventer Vacuum Breaker

【What do you get 】: 2 × Vacuum Breakers, 2 × Washers, 1 × Tape (About 350" long).Comes with 3 months guarantee.
【Specifications】: 3/4 inch female hose threaded inlet × 3/4 inch male hose threaded outlet; max operating pressure is 125 psi; max operating temperature is 180°F/82°C
【Advanced Function】: Break-off screw for permanent attachment; eliminates back-siphonage into water supply; anti-backflow valve for most of standard hose and end valves including hose bibs, sillcocks, RV, garden spigot, outside water faucets, hydrants.
【Drain Hole】:Reaching a certain water pressure, drain hole is able to drain the remained water in the pipe. WARNING :Please keep away from the product when turning off the water, remained water will be sprayed wet your clothes.
【High Quality】: Durable brass material stays longer; Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9.

Rank No. #2

Homewerks Worldwide VACBFPZ4B Vacuum Breaker Hose Bib Backflow Preventer, 3/4 Inch, Brass

FUNCTIONALITY: Homewerks Vacuum Breaker will help prevent water backflow to the main water supply. 3/4-Inch self draining vacuum, breaker, Male hose thread
PERFORMANCE: Can operate into maximum temperature rating of 180º F/82º C and maximum operating pressure rating in 125 Psi. Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9
COMPATIBILITY: The ¾-Inch thread outlet is compatible with most of standard hose and end valves including hose bib, sillcocks, wall faucets and garden hose.
CORROSION RESISTANT: Homewerks Vacuum Breaker is a corrosion resistant as it built with durable and reliable brass constructions.
HOMEWERKS TRUSTED QUALITY: Be confident in the quality and construction of each and every one of our products. We ensure that all our products are produced and certified to regional, national and international industry standards.

Rank No. #3

Breezliy 2-Pack Brass Vacuum Breaker Set 3/4" Anti-Siphon Hose Bib Valve for Garden Spigot RV Hose Connection Backflow Preventer Connector with Tape and Extra washers

★Standard size:3/4 inch thread fit most standard American hose. Drain hole is able to drain the remained water in the pipe.Please keep away from the product when turning off the water, remained water will be sprayed out.
★Package include: 2 PCS Vacuum Breaker with 4 PCS extra black Silicone gasket washers and 1 tape.
★Max. operating temp. rating: 180 F/82 C, Max. operating pressure rating: 125 PSI.
★Heavy Duty Brass,strong and solid,silver Stainless steel Nails.Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9 Standard.
★Widely Application：Break-off screw for permanent attachment; eliminates back-siphonage into water supply. Can be used in anti-backflow valve for RV, garden spigot, outside water faucets, hose bibs, hydrants.

Rank No. #4

Hourleey Faucet Vacuum Breaker, Solid Brass Hose Bib Backflow Preventer, 3/4 Inch

Function: Hourleey faucet vacuum breaker can help you prevent foreign matter from entering the drinking water, prevent water from freezing and prevent anti-siphoning.
Brass: Heavy duty solid brass made it durable.
Standard size: 3/4 inch thread fit most standard American hose.
Widely use: Can be used in RV, garden spigot, outside water faucets, hose bibs, hydrants. Protect you from drinking dirty water remaining in the hose
Good Service: If any problem, please feel free to contact us, Prince Team offer replacement and full refund services.

SaleRank No. #5

Rain Bird HTO75BFFSX RRain Bird HT075BFFS Drip Irrigation Backflow Preventer and 150 Mesh Filter, Female, 3/4" Hose Thread, Black

#1 commercial-grade irrigation spray head brand in the world
Pre-installed orange flush cap blocks after flushing system; replace with any Rain Bird MPR spray nozzle
2" pop-up height
Heavy-duty stainless steel spring assures flush retraction every time
Patented pressure-activated co-molded wiper seal prevents wasteful water leakage and assures long life

Rank No. #6

WHK Hose Bib Backflow Preventer Vacuum Breaker,Garden Hose Check Valve to Connect 3/4 Inch Outdoor Faucet Spigot,Sprinkler,RV,Anti-Siphon,2 Packs

★【Garden Hose Backflow Preventer Material】●The material of bib hose backflow preventer is use solid 100% heavy duty brass,safety and duable.●The hose bib vacuum breaker is high temperature ductility and low magnetic permeability.Meets ASSE 1011/CSA B64.2 and ANSI/NSF 61-9 Standard.
★【Garden Hose Vacuum Breaker Feature】WHK Vacuum Breaker will prevent unclean water into drinking; Manually drain the faucet and block water from freezing and Anti-siphone. 3/4-Inch self draining vacuum, breaker, Male hose thread, Break-off screw for permanent attachment.
★【Vacuum breaker Valve Size】3/4-inch female hose threaded inlet,3/4-inch male hose threaded outlet.The ¾-Inch thread outlet is apply for most of standard hose and end valves including hose bib, sillcocks, wall faucets,RV water lines and garden hose.
★【Garden Hose Check Valve Application Condition 】Max operating pressure is 125 psi; Max operating temperature is 180°F/82°C.
★【100% Satisfaction Service and Package includes】You will receive 2 PCS hose backflow preventer+1 PC Tape+2 additional washers.If you are not completely satisfied our products,we will give you a replacement or a refund.

Rank No. #7

Xiny Tool 2 Pack Faucet Vacuum Breaker, 3/4 Inch Solid Brass Hose Bib Backflow Preventer for Garden Spigot RV

Package Includes: 2 × Vacuum Breakers, 2 × Washers. The vacuum breaker valve is specifically engineered to inhibit fluid backflow into the drinkable water system.
Function: The Xiny Tool faucet vacuum breaker is designed to prevent contaminants from entering your drinking water, protect against freezing, and offer anti-siphoning capabilities.
Durable: The vacuum breaker features a durable brass construction for prolonged reliability and is resistant to corrosion. 3/4 inch thread fit most standard American hose.
Widely Use: Suitable for use with RVs, garden spigots, outdoor faucets, hose bibs, and hydrants, this device protects you from consuming any residual contaminated water in the hose.
Good Service: We guarantee to respond to all inquiries received online within 24 hours, we are always here to serve you and provide the assistance you need.

Rank No. #8

3 Pack SUNROAD Lead-Free Brass 3/4" Inch MHT Hose Bibb Connector Backflow Preventer Vacuum Breaker,Check Valve For Garden Spigot RV Hose Connection,Anti-Siphon Fitting with extra set screws

Standard size: 3/4 inch thread fit most standard American hose. Drain hole is able to drain the remained water in the pipe.Please keep away from the product when turning off the water, remained water will be sprayed out.
Temperatures: Max. operating temp. rating: 180°F/82°C, Max. operating pressure rating: 125 PSI.
Application:Breakaway set screw for permanent attachment. Headless Hex Set screw for removable installation. Eliminates back-siphonage into water supply,anti-backflow valve for RV, garden spigot, outdoor water faucets, hose bibs, hydrants.
HIGH QUALITY: Durable brass material stays longer; Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9
PACKAGE INCLUDES: 3 × Vacuum Breakers,6 × Washers, 6 x Headless Hex Set screws,1 x Allen Wrench, 1 × Thread SealTape . ATTENTION:not for fine thread.

Rank No. #9

LASCO 05-1760P Plastic Hose Bibb Backflow Preventer with 3/4-Inch Female Hose Thread x Male Hose Thread

Constructed of durably plastic for dependability
Prevents reverse flow of contaminated water
3/4-inch female hose thread by male hose thread
Install onto male hose thread on faucet, then install hose
Hose bibb backflow preventer

Rank No. #10

EMIHO Anti Siphon Valve, Hose Bib Vacuum Breakers Set, 3/4 Inch GHT Hose Backflow Preventer for RV Garden Spigot, Brass Connection Backflow Preventer Connector Includes Tape and Extra Gaske, 4 Pack

Rank No. #11

Pronese 1 Pack Lead-Free Brass 3/4" Inch MHT Hose Bibb Connector Backflow Preventer Vacuum Breaker,Check Valve For Garden Spigot RV Hose Connection,Anti-Siphon Fitting

★【Premium Material】:Different from other's, material of our vacumm breaker is Lead-Free brass,which is safety for drinking. Lead-Free Brass for corrosion resistance, high temperature ductility and low magnetic permeability.Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9 Standard.
★【Parameters】:Max. operating temp. rating: 180oF/82oC, Max. operating pressure rating: 125 PSI.
★【Application】：Break-off screw for permanent attachment. Eliminates back-siphonage into water supply,anti-backflow valve for RV, garden spigot, outside water faucets, hose bibb, hydrants.
★【Easy To Use】:3/4-inch female hose threaded inlet,3/4-inch male hose threaded outlet.The 3/4-Inch thread outlet is compatible with most of standard hose and end valves including hose bib, sillcocks, wall faucets and garden hose.
★【Package Include】: 1 PCS Vacuum Breaker with 1 PCS extra red washers & 1PCS teflon tape.Comes with 1 year guarantee.

SaleRank No. #12

2 Pack Brass Vacuum Breaker 3/4" Inch GHT Hose Bibb Connector Backflow Preventer for Garden Spigot RV Hose Connection Backflow Preventer Connector with Tape and Extra washers

3/4-inch female Garden hose threaded with 3/4-inch male Garden hose threaded.3/4-inch Garden hose threaded compatible with RV, garden spigot, outside water faucets, hose bibs, hydrants and garden hose
Material: high quality solid brass, firm,high resistance to abrasion and corrosion,Meets ASSE 1011/CSA B64.2 with ANSI/NSF 61-9 Standard.
Break-off screw for permanent attachment; eliminates back-siphonage into water supply; with anti-backflow valve for RV, garden spigot, outside water faucets, hose bibs, hydrants.
Max. operating temp. rating: 180 F/82 C and Max. operating pressure rating: 125 PSI.
2 PCS Vacuum Breaker with 4 PCS extra green rubber washers and 1 teflon tape.

Rank No. #13

Litorange 1 Pack Brass 3/4" Inch GHT Hose Bibb Connector Backflow Preventer Vacuum Breaker

★【Specifications】:3/4-inch female hose threaded inlet,3/4-inch male hose threaded outlet.The ¾-Inch thread outlet is compatible with most of standard hose and end valves including hose bib, sillcocks, wall faucets and garden hose.
★【Temperatures】:Max. operating temp. rating: 180oF/82oC, Max. operating pressure rating: 125 PSI.
★【Application】：Break-off screw for permanent attachment. Eliminates back-siphonage into water supply,anti-backflow valve for RV, garden spigot, outside water faucets, hose bibs, hydrants.
★【Material】: : Litorange Brass for corrosion resistance, high temperature ductility and low magnetic permeability.Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9 Standard.
★【Package include】: 1 PCS Vacuum Breaker with 2 PCS extra red washers.Comes with 1 year guarantee.

Rank No. #14

WHK Hose Bib Backflow Preventer Vacuum Breaker,Garden Hose Check Valve to Connect 3/4 Inch Outdoor Faucet Spigot,Sprinkler,RV,Anti-Siphon,6 Packs

【Garden Hose Backflow Preventer Material】●The material of bib hose backflow preventer is use solid 100% heavy duty brass,safety and duable.●The hose bib vacuum breaker is high temperature ductility and low magnetic permeability.Meets ASSE 1011/CSA B64.2 and ANSI/NSF 61-9 Standard.
★【Garden Hose Vacuum Breaker Feature】WHK Vacuum Breaker will prevent unclean water into drinking; Manually drain the faucet and block water from freezing and Anti-siphone. 3/4-Inch self draining vacuum, breaker, Male hose thread, Break-off screw for permanent attachment.
★【Vacuum breaker Valve Size】3/4-inch female hose threaded inlet,3/4-inch male hose threaded outlet.The ¾-Inch thread outlet is apply for most of standard hose and end valves including hose bib, sillcocks, wall faucets,RV water lines and garden hose.
★【Garden Hose Check Valve Application Condition 】Max operating pressure is 125 psi; Max operating temperature is 180°F/82°C.
★【100% Satisfaction Service and Package includes】You will receive 6 PCS hose backflow preventer+1 PC Tape+6 additional washers.If you are not completely satisfied our products,we will give you a replacement or a refund.

Rank No. #15

Pronese 1Pack LF Premium Brass Garden Hose 2 Way Splitter+2Pack Hose Bibb Connector Backflow Preventer Vacuum Breaker,Heavy Duty For Garden Faucet,Hose Bib,All Metal with Comfortable Shut off Valve

★ 【Water-Drinking Health】: Lead-Free brass,not only useful for water-drinking water health, but also for corrosion resistance, high temperature ductility and low magnetic permeability.
★ 【Size】: Standard America 3/4" GHT.
★ 【Variety Function】: Easily connects to air compressor and garden faucet to winterize lawn sprinkler systems, drip irrigation system, soaker hoses, faucets, and plumbing to prevent damage due to freezing.Prevent Damage to your water lines by using air to clear your water lines. Save yourself the headaches in the spring when you are ready to hit the road again.
★ 【Easy to use】: This adapter has a very low threshold for use, just a air pump can help you winterszie your RV etc.
★ 【Package Include】: 2PCS 3/4" male GHT with 2Pcs teflon tape. Comes with 1 year warranty.

Rank No. #16

One Way Check Valve 3/4" Female Backflow Preventer, Check Valve NPT Female Thread Brass Float Reinforced 0.75 inches

Efficient Flow Control: The 3/4 inch One Way Check Valve is designed to ensure efficient flow control of liquids. It effectively prevents backflow, maintaining optimal system performance and preventing any potential disruptions. With this valve in place, you can trust that your fluids will flow smoothly and reliably.
Robust and Durable: Crafted from high-quality materials, this check valve is built to last. Its sturdy construction ensures durability and longevity, even in demanding environments. Rest assured that this valve will provide reliable performance for an extended period, saving you time and money on replacements.
Easy Installation: Installing the 3/4 inch check valve is a breeze. Its user-friendly design and standard size make it compatible with various plumbing systems. Whether you're a professional or a DIY enthusiast, you can easily install this valve without any complications, allowing you to quickly enhance your flow control system.
Versatile Applications: This check valve offers versatility for a wide range of applications. Whether you need it for plumbing systems, irrigation setups, aquariums, or other fluid control systems, this valve is up to the task. It provides reliable one-way flow control, making it suitable for numerous residential, commercial, and industrial applications.
Reliable Performance: The 3/4 inch One Way Check Valve delivers consistent and reliable performance for your flow control needs. With its precise engineering and quality construction, this valve ensures smooth and uninterrupted fluid flow in one direction. Trust in its dependable operation to maintain the integrity of your system without compromising efficiency.

Rank No. #17

SUNGATOR Anti Siphon Valve, 6-Pack Hose Bib Vacuum Breakers Set, 3/4 Inch Backflow Preventer for Garden Spigot, RV, Solid Brass Anti-Backflow Valve with Sealing Tape

【ADVANCED FUNCTION】: Break-off screw for permanent attachment; eliminates back-siphonage into water supply; anti-backflow valve for most of standard hose and end valves including hose bibs, sillcocks, RV, garden spigot, outside water faucets, hydrants.
【DRAIN HOLE】: Drain hole is able to drain the remained water in the pipe. WARNING :Please keep away from the product when turning off the water, remained water will be sprayed out
【SPECIFICATIONS】: 3/4 inch female hose threaded inlet × 3/4 inch male hose threaded outlet; max operating pressure is 125 psi; max operating temperature is 180°F/82°C
【HIGH QUALITY】: Durable brass material stays longer; Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9
【PACKAGE INCLUDES】: 6 × Vacuum Breakers, 6 × Washers, 1 × Tape (About 350" long) and 1 × Plastic Box

Rank No. #18

SUNGATOR Anti Siphon Valve, Hose Bib Vacuum Breakers Set, 3/4 Inch Backflow Preventer for Garden Spigot, RV, Solid Brass Anti-Backflow Valve with Sealing Tape (4-Pack)

【ADVANCED FUNCTION】: Break-off screw for permanent attachment; eliminates back-siphonage into water supply; anti-backflow valve for most of standard hose and end valves including hose bibs, sillcocks, RV, garden spigot, outside water faucets, hydrants.
【DRAIN HOLE】: Drain hole is able to drain the remained water in the pipe. WARNING :Please keep away from the product when turning off the water, remained water will be sprayed out
【SPECIFICATIONS】: 3/4 inch female hose threaded inlet × 3/4 inch male hose threaded outlet; max operating pressure is 125 psi; max operating temperature is 180°F/82°C
【HIGH QUALITY】: Durable brass material stays longer; Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9
【PACKAGE INCLUDES】: 4 × Vacuum Breakers, 4 × Washers, 1 × Tape (About 350" long) and 1 × Plastic Box

Rank No. #19

SUNGATOR 2-Pack Vacuum Breaker Set, 3/4 Inch GHT Garden Hose Thread Anti-Siphon Hose Bib Valve for Garden Spigot, RV, Solid Brass Anti-Backflow Valve with Tape

【APPROVED TO USE】: 3/4 inch female hose threaded inlet × 3/4 inch male hose threaded outlet. SUNGATOR vacuum breaker set Meets ASSE 1011/CSA B64.2, ANSI/NSF 61-9 for quality assurance.
【ADVANCED FUNCTION】: Vacuum breaker valve is designed to prevent the backflow of fluids back into the potable water system. Break-off screw for permanent attachment, the drain hole is able to drain the remained water in the pipe. Anti siphon device is equipped with a self-draining mechanism that allows water to drain upon shut off effectively, and eliminates back-siphonage into water supply.
【GREAT COMPATIBILITY】: These 3/4 inch anti-backflow valve is compatible with most of standard hose and end valves including hose bibs, sillcocks, RV, garden spigot, outside water faucets, and hydrants. BUT NOT FOR FINE THREAD.
【HIGH QUALITY】: Durable brass material stays longer. SUNGATOR 3/4 inch anti siphon valve has excellent corrosion and high temperature resistance. Max operating pressure is 125 psi; Max operating temperature is 180°F/82°C
【ATTENTION】: Reaching a certain water pressure, the drain hole is able to drain the remained water in the pipe. Please keep away from the product when turning off the water, remained water will be sprayed out.

Rank No. #20

5 Pack SUNROAD Lead-Free Brass 3/4" Inch MHT Hose Bibb Connector Backflow Preventer Vacuum Breaker,Check Valve For Garden Spigot RV Hose Connection,Anti-Siphon Fitting with extra set screws

Standard size:3/4 inch thread fit most standard American hose. Drain hole is able to drain the remained water in the pipe.Please keep away from the product when turning off the water, remained water will be sprayed out.
Temperatures:Max. operating temp. rating: 180°F/82°C, Max. operating pressure rating: 125 PSI.
Application:Breakaway set screw for permanent attachment. Headless Hex Set screw for removable installation. Eliminates back-siphonage into water supply,anti-backflow valve for RV, garden spigot, outdoor water faucets, hose bibs, hydrants.
HIGH QUALITY: Durable brass material stays longer; Meets ASSE 1011/CSA B64.2, Meets ANSI/NSF 61-9
PACKAGE INCLUDES: 5 × Vacuum Breakers,10 × Washers, 10 x Headless Hex Set Screws,1 x Allen Wrench, 1 × Thread Seal Tape .

Last update on 2023-08-01 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Is it worth buying an Garden Hose Backflow Preventer?
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Brand Value: Every brand of Garden Hose Backflow Preventer has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Garden Hose Backflow Preventer?
Specifications: How powerful they are can be measured.
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Customer Ratings: Number ratings grade Garden Hose Backflow Preventer objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Garden Hose Backflow Preventer.
Product Quality: You don’t always get what you pay for with an Garden Hose Backflow Preventer, sometimes less, and sometimes more.
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FAQ:

Q: What is a backflow preventer and how does it work?

A: A backflow preventer is a device that’s installed on your home’s water pipes that allows water to flow in one direction but never in the opposite direction. Its sole job is to prevent drinking water from being contaminated due to backflow.

Q: Do I need a backflow preventer?

A: As mentioned previously, a backflow preventer should be used on almost every irrigation system. However, it is especially necessary when the water is coming from a potable source.

Q: Is a backflow preventer necessary?

A: Sometimes Backflow Preventers are Necessary. Backflow devices are not only necessary to ensure the safety of the public ate supply, but they are often a requirement for certain homeowners and business owners. Those with irrigation systems, pools, chemical connections to main water lines or a well on their property need a backflow system.

Q: What is backflow device?

A: A backflow device is a preventive device that is installed in pipelines carrying potable water to protect the water from harmful chemicals and contaminants. A clogged sewer pipe or an industrial effluent pipe can flow back into the main system and thus contaminate other supply sources.