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Backflow Reference Manual - Febco

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856 / 856ST / 876 / 876VST / 876V


2 1/2", 3", 4", 6", 8", 10"


This is a double check detector assembly. Production began in 1993. The 856 utilizes a main line assembly similar to the 850. The 876 utilizes an assembly similar to the 870. The 876V utilizes an assembly similar to the 870V. The bypass assembly utilizes the 805Y 3/4" or 805YB 3/4".


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.