Watts 757-DOSY 4 - Part of the 757 Series American Wick Drain is used when retrofitting a

is used when retrofitting a backflow preventer into an installation where an existing backflow preventer is being replaced

This Watts Drainage epoxy coated

Suitable for areas where dome strainers are not desired

Its single closet flexibity and 3 inch no hub waste and 2 inch no hub connections allow for easy installation

ZN415-SZ1-3IG

Watts 757-DOSY 4 - Part of the 757 Series American Wick Drain is used when retrofitting aThis 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