Watts 774-DNRS 2 1/2 - Part of the 774 Series Drain Fitting This 4 inch floor drain

This 4 inch floor drain funnel is epoxy coated cast iron and bolt-on style

Variable surface ADA tiles are commonly placed in and near sidewalk curb ramps

Stainless steel internals

Specification Sheet - Z874-21

Watts 774-DNRS 2 1/2 - Part of the 774 Series Drain Fitting This 4 inch floor drainThis 2 1 2 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of 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 under continuous pressure service and protection at cross connections identified as non health hazards and from other