Watts 757-DNRS 2 1/2 - Part of the 757 Series Drain Fitting Channel 13 is a sloped

Channel 13 is a sloped section with an invert depth from 15

The drain cover has an open surface area of 25

Neutral base

They are incredibly strong open top catch basin sediment bags and are designed specifically to hang below the storm grate to filter the thickest sediment from stormwater

Watts 757-DNRS 2 1/2 - Part of the 757 Series Drain Fitting Channel 13 is a slopedThis 2 1 2 inch stainless steel double check valve backflow preventer assembly is designed to prevent the reverse flow of objectionable but not toxic water 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 and from other contaminants found at the