Watts 007M1-LF-UL 1 - Part of the 007 Series roof-hatch-finder and it does not decay

and it does not decay or mildew

Retainer Wire Kit Type Seat Kit Lead Free YES Product Group BACKFLOW KITS UPC - 098268458725

ZB453-4NH-7B

UPC - 098268689198

Watts 007M1-LF-UL 1 - Part of the 007 Series roof-hatch-finder and it does not decayThis 1 inch double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single top entry access cover for in line repairs. It is ideal for protection in continuous pressure piping