Pentair 1/2" x 90 Deg NPT Tube Fitting w/ Nut | R172272 Available Online Filter Air Relief Assemblies &

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Pentair 1/2" x 90 Deg NPT Tube Fitting w/ Nut | R172272 Available Online Filter Air Relief Assemblies &Pentair Rainbow 1 2" MPT 90 Tube Fitting w Compression Nut R172272 The Pentair Rainbow R172272 is a 90 degree elbow tube fitting with an integrated compression nut, used on select Pentair Rainbow automatic chlorine bromine feeders. This fitting threads into the feeder body (1 2" male pipe thread) and provides a secure, right angle connection to the feeder tubing line. Its commonly replaced when the original fitting is cracked, leaking at the threads,