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The Best rv backflow check valve of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best rv backflow check valve of 2023. Check our ranking below.
2,901 Reviews Scanned
- RV Backflow Preventer
- Dimensions: 2-1/8" x 1" diameter
- Fitting dimensions: 1/2" male NPT
- Material: Brass
- Prevents potential backflow from the water heater into the freshwater system
- Fix failed leaky rv vacuum breaker check valve on black tank flush system line when black tank flush line system was blocked/faulty and leaking and wet rv camper trailer floor
- Exact vacuum breaker check valve rv replacement for cracked and leaking rv black tank flush check valve,if your rv vacuum breaker valve was leaking when flushing black tank,just replace rv black tank flush check valve. It’s a perfect vacuum valve for rv black tank flush
- A part of the black tank flushing system and installs between the freshwater inlet connection and the tank flusher.The vacuum breaker for rv black tank flush,help black tank water for mixing with grey water.RV backflow preventer leaves freshwater source clean and healthy
- The rv black tank anti siphon valve/vacuum breaker is designed to keep what's in the black tank from siphoning back into the rv water supply. Preventing water supply bad contents from backflow and back-siphonage
- Work water pressure range: 8-125 PSI,Connection Type: 1/2” NPT male threads on both the inlet& outlet,please kindly see below warm tips in description,Tks!
- ✅ Trusted Halotronics Quality – Engineered for durability and reliability, the Halotronics RV Vacuum Breaker Check Valve prevents backflow, protecting your fresh water supply from contaminants.
- ✅ Universal Compatibility – Designed to replace common model 571-VAC-CHK-A, this check valve fits most RV and marine plumbing systems with a secure and reliable connection.
- ✅ Leak-Resistant & Corrosion-Resistant – Built with premium materials to withstand water pressure and prevent leaks, ensuring long-lasting performance in all environments.
- ✅ Quick & Easy Installation – Designed for hassle-free DIY installation—no special tools required. Simply replace your old unit and restore proper water flow in minutes.
- ✅ Essential for RV & Marine Water Systems – Whether you're upgrading or replacing a worn-out valve, Halotronics delivers top-tier performance to keep your RV or boat’s plumbing system safe and compliant.
- Although this piece is small and simple-looking there are several points that need to be addressed when it comes to proper water safety and installation. First, this should only be used on one fixture at a time. This keeps the pressure in the line predictable and the vacuum breaker able to handle it.
- Second, this vacuum breaker is a high-hazard protectant. Because of this, it can be used in a low-hazard application as well.
- Third, it should be installed a minimum of 6 inches above the highest point of any item connected to the waste tank where the flusher is installed. This vacuum breaker should also not be under more than 12 hours of continuous water pressure. This could cause the check valve to shut or become stuck.
- Fourth, make sure that this vacuum breaker is installed upright. It relies on gravity to properly function and if it is installed in a different position, the valve may not fully open.
- Made in America
- 【RV Vacuum Breaker Check Valve】This check valve is a part of the black tank flushing system and installed between the freshwater inlet and the tank flusher.The check valve can prevent gray water from flowing backwards in the water system pipeline, avoid equipment damage, and effectively protect the cleanliness of pure water.
- 【Solve Problems】Simply replace the cracked and leaking RV vacuum breaker check valve，If your RV check valve leaks while flushing the black tank, or when the black tank flush line system is clogged/failed and your RV camper trailer floor is wet. The vacuum breaker check valve is an optimal replacement for a cracked or leaking RV check valve.The precise design can make the valve core block all the countercurrent sewage and effectively protect the clean water.
- 【Easy Installation】571-VAC-CHK-A RV Vacuum Breaker Check Valve is plug-and-play. Remove your old check valve. Confirm the installation direction: clean water should flow in the direction of "FLOW" indicated by the arrow of the valve body, and then connect the check valve to the pipeline. Note: Installation position should be about 6 inches higher than the flusher and ensure vertical installation.Before installation, cut off the water source and empty the residual water in the pipeline.
- 【Widely applicable】The 571-VAC-CHK-A RV vacuum breaker check valves are compatible with various RV models, campers, travel trailers, and motor homes. Note:Besides referring to the listed RV, the most important thing is to check whether the nominal diameter of the circuit breaker that your pipes are adapted to is 1/2 inch, which is the premise to ensure good adaptability.
- 【Specifications】The parameters of this RV Vacuum Breaker Check Valve are as follows: Nominal pressure (PN): 8-125 PSI ；The inlet/outlet is designed by NPT Male, and the common diameter (DN) is 1/2 inch.
Last update on 2025-07-13 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: How many backflow preventers does an RV have?
A: All RVs have a number of backflow preventers (check valves) in the fresh water plumbing system, some RV’s have as many as 4 backflow preventers. The first one to become familiar with is the one at the city water inlet which connects from the campground water supply into the RV.
Q: Do you need a backflow valve for a water pump?
A: When on city water, you’ll want to keep water from entering the pump and when operating the water pump, you want to keep the water from spewing out the city water inlet. I always recommend carrying a spare backflow check valve just in case.
Q: Do you need a check valve for fresh water in an RV?
A: Install this check valve inside your RV’s fresh water system to prevent backflow and keep nasty contaminants out of your RV’s fresh water plumbing. Durable brass is lead-free, keeping your water safe to drink.
Q: Where is the hot water valve on an RV?
A: Most RV manufacturers now do this at the factory. Likewise with the by-pass kit. It installs at the rear of the water heater between the cold inlet and hot outlet tubes. From the hot outlet on the water heater, simply route the water line to every faucet with a hot water valve.