Connections (Flange x Nut): Thread x Thread

Purple-tinted aggressive primer for use on PVC and CPVC pipe and fittings

Colonial Laboratory Valves offer the following:

Used to attach any Schedule 40 fitting of the same size with MPT connection type to a Schedule 40 pipe of that size

Clear PVC Check Valves Gray Connections (Flange x Nut): ThreadUnion check valves allow one directional water flow and are used to prevent back siphoning. They are commonly used on return pump outputs to prevent water overflowing the sump in the event of a power outage, pump failure or maintenance. These check valves feature true union fittings on each end for easy Cleaning or replacement. Designed to fit Schedule 40 pipe and fittings of the same size.