Watts 757N-OSY 4 - Part of the 757 Series Window Well Cover or smaller wet environments

or smaller wet environments

Male SAE Threads

along with an anti-splash bottom dome strainer to reduce splashback and trap debris

brass drain tap

This security accessory works with the BG-FILCOTEN® 200 trench drain line to secure the drain grate onto the integral frame of the channel or catch basin

Watts 757N-OSY 4 - Part of the 757 Series Window Well Cover or smaller wet environmentsThis 4 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. It is ideal for protection at cross connections identified as non health hazards and from other