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RV Vacuum Breaker Check Valve, Replace Leaking Vacuum Breaker on Black Tank Check Valve for RV Camper Trailer Flusher, 571-VAC-CHK-A Brass Breaker to Improve Freshwater

4.4 (1) Write Review
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$16.99

$ 8 .99 $8.99

In Stock

About this item

  • RV VACUUM BREAKER CHECK VALVE: Suitable for B&B 571 check valves which are part of a black water tank flushing system and are installed between the fresh water inlet and the tank flusher. The vacuum breaker can help black tank water for mixing with grey water to ensure clean and healthy water
  • UPGRADED CONSTRUCTION: This 571-VAC-CHK-A RV Vacuum Breaker Check Valve is made of brass and can withstand 8-125 PSI of water pressure. Less susceptible to freezing and cracking in cold climates, better performance and longer service life than plastic
  • EASY INSTALLATION: Can simply be fitted to a caravan's black water tank flushing system and must be installed 6” above the highest point of any item connected to the waste water tank where the flusher is fitted. If you are unsure how to install the check valve, it is recommended to ask a professional plumber
  • VERSATILE APPLICATION: This vacuum breaker check valve is suitable for all models of caravans, campers, preventing the contents of the black water tank from siphoning back into the RV freshwater system, travel trailers and motels and is a reliable alternative to ruptured or leaking check valves
  • RELIABLE AND EFFICIENT: When your RV check valve leaks while flushing your black water tank, you can simply replace the leaking RV vacuum breaker check valve. Say goodbye to leaks in your water. Making your caravan life more convenient and comfortable


Product Description

RV vacuum breaker check valve makes RV life nice
application of these issues
fit for these rv
notice when you use the RV check valve

Steven A. Culver
Reviewed in the United States on March 24, 2025
My wife and I are blessed to have a travel trailer we enjoy using. While doing spring clean up and de-winterization I noticed some small leaking around the black tank flush line. I did some research and found the cause of this can be a faulty vacuum breaker check valve. A what? I had never heard of this. After inspecting under the bathroom sink I found it and wanted to replace it.The Yunziling RV vacuum breaker check valve is a very strong valve made of brass. Much stronger than the cheap plastic OEM valve I had. It is rated from 8 to 125 psi which is well within the limits of 55 psi I run my RV at. This is a high quality valve that I see lasting forever in my RV and deserves your consideration if you need one.
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