571-VAC-CHK RV Vacuum Breaker Check Valve Replacement for RV Black Tank System Check Valve (Black)

Attention: 1. Only be used on one fixture at a time. 2. Ensure that the installation of the RV check valve is vertical. (Not vertical can easily cause leakage) 3. Try not to use the product continuously for more than 12 hours. 4. The product needs to be installed at least 6 inches above the highest point fixing device connected to the water system where the flushing device is installed. If your product encounters the following situations, please replace the check valve: 1. The check valve is old, damaged, and cracked, and has not been replaced for many years. 2. There is a huge abnormal noise coming from under the sink in the RV bathroom. 3. Rinse the black water tank and wet the floor with lead, then leak or spray water.

• [OEM Part Number]: 571-VAC-CHK-A
• [Function]: Product 571-VAC-CHK-A is part of the black water tank flushing system installed between the fresh water inlet and the water tank flushing device. It can prevent backflow and anti siphoning, keeping the fresh water source clean and healthy.
• [Fitment]:Suitable for various RV models, campers, travel trailers, and RVs, it is a reliable alternative to rupture or leak check valves.
• [Installation]: The inlet and outlet of this check valve product have 1/2 "NPT external threads, which require no tools and are easy and fast to install. (Note: it must be installed at least 6 inches above the highest point of any item connected to the waste water tank where the flushing device is installed.)
• [Working Water Pressure Range]: 8-125 PSI