2", 2 1/2", 3"
The 007 DCDA is a double check detector assembly. Production began in 1995. The assembly utilizes a main valve similar to the 007. Several different bypass assemblies have been used over the years. Check the name plate to identify which version you have. The models used for the bypass were 3/4" 007M1, 3/4" 007M2, or 1/2" 007.
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.