Watts LF7RU2L-2 1/2 X 1/2 - Part of the LF7R Series ZC100F-4NH Flashing clamp with integral gravel

Flashing clamp with integral gravel stop for watertight membrane attachment

Includes diaphragm

and by vehicle roadways

Dura-Coated Cast Iron Body: Corrosion-resistant construction built for longevity under wet conditions

This is a 6 mil thick

Watts LF7RU2L-2 1/2 X 1/2 - Part of the LF7R Series ZC100F-4NH Flashing clamp with integral gravelThis 1 2 by 1 2 inch lead free dual check valve backflow preventer helps prevent the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. It is designed with a longer lay length tailpiece to be backwards compatible with the previous versions of the watts no. 7 valve. This valve consists of a lead free brass body construction, with two plastic replaceable check valves and