This 1 inch double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements

3/4" (FIP x Male Union) Steam Angle Radiator Valve

5/8 COMP SLEEVE

Shutoffs not included

and is CSA certified

1/4 X 6 BLK NIPPLE (100/25) BACKFLOW PREVENTER This 1 inch double checkBlack steel nipples and pipe offer a secure method of transporting plumbing mediums. General uses for this product are for transporting lubricant, oil, grease, LP gases & fuel or to create your own DIY projects. This pipe style is designed for use with other black malleable iron fittings.