Watts 774DCDA-OSY-TS-GPM 8 - Part of the 774DCDA Series ground-shipping reinforced with 4” x 4”

reinforced with 4” x 4” wire mesh pattern

3/4 inch NPTF female outlet

double check detector assembly prevents the backflow of pollutants that are objectionable but not toxic

ZN453-2NH-5B

ZN415B-3IP

Watts 774DCDA-OSY-TS-GPM 8 - Part of the 774DCDA Series ground-shipping reinforced with 4” x 4”This 8 inch double check detector backflow preventer assembly prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It is designed for installation on applications identified by local authorities as non health hazard, such as on fire protection systems. This assembly consists of a compact construction and short lay length, ideal for retrofit installations and can be installed in a