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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Low Maintenance Design: Easy access for cleaning and replacement ensures consistent performance over time
Press connection rated to 250 psi CWP up to 210 degrees F
Features Threaded
Combination Membrane Flashing Clamp and Gravel Guard — Secures the roof membrane and prevents debris or aggregate from entering the drain
1/2 inch NPTF threaded male inlet and 1/2 inch NPTF threaded female (drain) outlet
Watts 774DCDA-DOSY-CFM 3 - Part of the 774DCDA Series dura-skrim-selector Low Maintenance Design: Easy accessThis 3 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards such as on fire protection
