Watts 774-LF 12 - Part of the 774 Series roof-hatch-finder Rated for light to moderate

Rated for light to moderate commercial traffic and available in multiple strainer diameters and outlet sizes

It features a 12 3/4 inch square fixed top with heel-proof ductile iron grate

Mesh Specifications: The wire mesh has 3/4" openings

while the secured cover allows controlled access to the space below

Watts 774-LF 12 - Part of the 774 Series roof-hatch-finder Rated for light to moderateThis 12 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 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 hazard applications and from other contaminants