The PCW-01 washer regulator is a washer with dual function: Flow regulating and sealing Typical application are 1/2" shower hose fittings or shower heads G1/2". It's easy to assemble and therefore perfect for retrofit.
The PCW-02 washer regulator is a washer with dual function: sealing and flow regulating. A flexible turbine for secure position fits in various tube diameters. Typical applications are 1/2" shower handles, bib and pillar taps (male thread); these units can easily be equipped with the flexible silicone adapter before installation.

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