This backflow preventer is an accessory typically available from Safety Manufacturing's drench hose. The component measures 2-3/8" (60.325 mm) long. Both ends feature female threading of 3/8-18 NPT. The component is a dual-check atmospheric-vent backflow preventer and is fabricated from chrome-plated brass.
Downloads
Submittal S0000-BFP Valve (pdf)