Fernco® PROFLEX® Coupling, Specialty, 3009 Series, Fitting/Connector Type: Coupling, 4 in Nominal Size, Thinwall Plastic x SCH 40 Plastic, 2.13 in Length, 4.3 psi Tested, -30 to 180 deg F
Proflex is a shielded transition pipe coupling that allows you to make pipe connections that are resistant to shear forces, while creating a rigid, long-lasting pipe joint. From 1/2 to 8 in pipe diameters - Proflex connects cast iron, plastic, steel, copper and tubular, drain waste and vent systems for above-ground applications.