Watts 288A-MB 3/4 - Part of the 288A Series roof-hatch-finder This 3/8 inch lead free

This 3/8 inch lead free dual check vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply

A removable cover provides surface-level access for maintenance

and supports water entry around the edge when needed

or vehicle traffic nearby

Size: 4" x 75'

Watts 288A-MB 3/4 - Part of the 288A Series roof-hatch-finder This 3/8 inch lead freeThis 3 4 inch anti siphon vacuum breaker can be used on hot or cold water health hazard installations, such as laboratory equipment. It is designed to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It has a brass body, full size orifice, chemical resistant silicone seat disc and an atmospheric vent to prevent spilling. The connections are British Standard Pipe (BSP) thread. Features Brass