Watts 774DCDA-LF-LM 4 - Part of the 774DCDA Series snake fence EPDM Disc Elastomer Kit Type

EPDM Disc Elastomer Kit Type Second Check Kit Lead Free Yes UPC - 098268126860

This 2 inch full lug style butterfly valve

UPC - 098268461510

roof-top installations

and a 12¾″ × 12¾″ square adjustable top fitted with a heel-proof ductile-iron grate

Watts 774DCDA-LF-LM 4 - Part of the 774DCDA Series snake fence EPDM Disc Elastomer Kit TypeThis 4 IN 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 can be installed in a horizontal or vertical flow up position.