3", 4", 6", 8", 10"
This is a double check detector assembly. Production began in 1992 and was discontinued in 2003. It utilizes an assembly similar to the 40-100 design double check for the mainline assembly and the bypass unit. Note each size has a different model number, but they are all in the 40-600 series.
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.