Watts 757DCDA-OSY-LM 4 - Part of the 757DCDA Series Tactile Paving ZS1900-4NH

ZS1900-4NH

bonnet O-ring and check spring

UPC - 098268164275

Z191-5X4X24-3IP

Heavy-duty cast-iron construction for long-term durability

Watts 757DCDA-OSY-LM 4 - Part of the 757DCDA Series Tactile Paving ZS1900-4NHThis 4 IN double check detector backflow preventer assembly prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. Its compact housing consists of two independently operating tri link check valves, two shutoff valves, and four test cocks. It features a stainless steel housing and sleeve and is 70 percent lighter than traditional designs. It is designed for non health hazard applications