Watts 757-DOSY 4 - Part of the 757 Series R304 Detectable Warning Surfaces This kit consists of a

This kit consists of a cover O-ring and two seats

our panels have an Anchor LockTM external flange at the base to secure them in the ground and a "T" top edge to prevent root overgrowth

while the square

This 1 inch lead free anti-siphon

Watts 757-DOSY 4 - Part of the 757 Series R304 Detectable Warning Surfaces This kit consists of 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