Backflow Reference Manual - Watts

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800 M2 / 800 M3


800 M2: 1/2", 3/4", 1", 1 1/4", 1 1/2", 2" 800 M3: 1/2", 3/4"


This is a pressure vacuum breaker assembly. Produced from 1991-1994. This is a bronze bodied unit. The check spring is contained when the bonnet is removed. The check seats are not replaceable. The test cocks for these models are all located on the ball valve and not on the body.


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.