Backflow Reference Manual - Watts

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


This is a double check assembly. It was produced approximately from 1973 to 1985. It is an in-line modular check design. Check seats were replaceable. Springs were contained when the assembly was disassembled but had to be released for proper repair. The 3/4"-2" size assembly had to be removed from the piping to be repaired. .


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.