Watts 909RPDA-OSY-GPM-FS 4 - Part of the 909RPDA Series SKAPS and an atmospheric vent to

and an atmospheric vent to prevent spilling

attaches to either end of the Micro Channel Drain and connects to 1-1/4 in

This 3 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable contaminated water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and contaminated water authority requirements

Works with the BG-FILCOTEN 300 12 in

hose adapters

Watts 909RPDA-OSY-GPM-FS 4 - Part of the 909RPDA Series SKAPS and an atmospheric vent toThis 4 inch reduced pressure detector backflow preventer assembly prevents the reverse flow of fire protection system substances from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. This assembly consists of an epoxy coated cast iron body, OSY resilient seated gate valves, captured spring check valves, replaceable stainless steel seats, top mounted test cocks, a pressure differential relief valve, and