3/4", 1", 1 1/4", 1 1/2"


This is a reduced pressure assembly. Production began approximately 1978 and was discontinued in 2003. The assembly is of bronze construction and consists of two poppet type check valves with a pressure differential relief valve. Check and relief valve seats are replaceable. A seat removal tool is needed to change the check seat. The relief valve uses the CDHS 20 design which can be detached from the check body. Most internal RV hardware parts are made of stainless steel. This relief valve can also be mounted on either side of the check body. Check springs are not contained when the cover is removed. The check poppets will be made of either stainless steel or delrin plastic. This model utilizes an internal relief valve sensing line. The relief valve spring was not contained when the relief valve body was disassembled.


Common repair parts are a very small subset of the 10,000 plus items BAVCO stocks. Please feel free to contact us direct at 800-458-3492 for pricing on items not listed or backflow prevention devices.