Watts 957N-OSY-FS 4 - Part of the 957 Series detectable-warning-mat-finder and pedestrian roof surfaces

and pedestrian roof surfaces

UPC - 098268824902

UPC - 098268010299

UPC - 098268637175

relief valve diaphragm

Watts 957N-OSY-FS 4 - Part of the 957 Series detectable-warning-mat-finder and pedestrian roof surfacesThis 4 inch reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. This extremely compact and lighter than a traditional designed assembly is approved for horizontal N pattern installation as long as the backflow assembly is installed in accordance with the direction of the flow arrow. This assembly consists of a stainless steel body with a