Watts 957N-QT 4 - Part of the 957 Series R304 Detectable Warning Surfaces This lever locking handle is

This lever locking handle is made to fit the 3 inch threaded or solder end 3C M1 series full port

and radiators

The landscape fabric for drainage is non-biodegradable

Specifications Buy American Act Compliant NO Compatible Series or Model LF919

This 2 1/2 inch stainless steel reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage

Watts 957N-QT 4 - Part of the 957 Series R304 Detectable Warning Surfaces This lever locking handle isThis 4 inch reduced pressure zone assembly backflow preventer helps 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. This extremely compact and lighter than a traditional designed assembly is approved for horizontal N pattern installation