The Watts 770DCDA is a double check detector assembly (DCDA). It was available in 4″-10″ sizes and was produced from 1993-1997. The body was made of epoxy coated ductile iron. The 770DCDA utilized a 3/4″ 007M1 for the bypass assembly.
Backflow Preventer Repair ManualPart #: BFCATSign in to view price