Watts 774DCDA-OSY-GPM 8 - Part of the 774DCDA Series Sheet Drain 72 bar) and a standard

72 bar) and a standard pressure setting of 30 to 45 psi (2

Z645-4NH-TS

Z1926-4NH-C

Constructed from robust woven polypropylene yarns

Watts 774DCDA-OSY-GPM 8 - Part of the 774DCDA Series Sheet Drain 72 bar) and a standardThis 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 consists of a compact construction and short lay length, ideal for retrofit installations. It features a lightweight stainless steel body, thermoplastic and stainless steel check valves, and low head loss. It has a gallons per minute meter and outside stem and yoke