Watts LF7RU4-2 1 X 3/4 - Part of the LF7R Series Nonwoven Fabric while the optional dome strainer

while the optional dome strainer prevents debris from blocking water flow

A heel-proof nickel-bronze round strainer is included

Cover O-ring

This 3/4 to 1 inch cover kit is for series 709C2

It consists of a bronze body with union threaded inlet and NPT threaded outlet connections

Watts LF7RU4-2 1 X 3/4 - Part of the LF7R Series Nonwoven Fabric while the optional dome strainerThis 1 by 3 4 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. This valve consists of a lead free brass body construction, 1 inch union female meter thread inlet by 3 4 female NPT outlet, two plastic replaceable check valves, and stainless steel springs. It is designed for non health hazard residential water