Watts 709DCDA-OSY 3 3/4CFM - Part of the 709DCDA Series Strip Drian and heavy-duty grate

and heavy-duty grate

supporting leak-resistant installation

It protects surfaces against damaging effects of water intrusion

UPC - 098268784190

Watts 709DCDA-OSY 3 3/4CFM - Part of the 709DCDA Series Strip Drian and heavy-duty grateThis 3 inch double check detector backflow preventer assembly prevents backflow of non health hazard fire protection system substances from being pumped or siphoned into the potable water supply. It incorporates 3 4 IN bypass with a cubic feet meter to detect ground leaks and unauthorized illegal taps, greatly reducing annual water expenses. It consists of a fused epoxy coated cast iron body and outside stem and yoke shutoffs. Its modular check design