Watts 757-DOSY 4 - Part of the 757 Series snake fence channeling runoff efficiently into downspout

channeling runoff efficiently into downspout piping

UPC - 098268564310

Constructed with an epoxy-coated cast-iron body and a membrane-clamp flange

architectural installation

Watts 757-DOSY 4 - Part of the 757 Series snake fence channeling runoff efficiently into downspoutThis 4 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backpressure and or backsiphonage in accordance with national plumbing codes and water authority requirements. It is ideal under continuous pressure service and protection at cross connections identified as non health hazards and from other non