Watts 188A 1 - Part of the 188A Series ZA100F-4NH This boiler pressure relief valve

This boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment

Light-duty heel-proof grate: Surface grate designed to withstand foot traffic while preventing large debris from entering the drain

Accepts multiple flange sizes 3/4

UPC - 098268590852

Watts 188A 1 - Part of the 188A Series ZA100F-4NH This boiler pressure relief valveThis 1 inch anti siphon vacuum breaker backflow preventer helps prevent the backsiphonage of contaminated water from entering into the potable water supply. It is ideal for low flow non continuous pressure installations such as residential irrigation systems or laboratory equipment. This vacuum breaker consists of a brass body with bronze internal trim, chemical resistant seat disc and an atmospheric vent to prevent spilling. The durable silicone disc