Pentair Pentair R172222 Cartridge Gasket Replacement Dynamic series Pool and Spa Filter

This cartridge gasket is designed to use with Pentair Dynamic series I, II RTL/RCF, III RTL/RCF and V inline pool/spa cartridge filter models RDC-25, RDC-25S, RDC-50, RDC-50S, DSC 75, DSC 100 and also compatible with Pentair Dynamic RCF-RTL series cartridge filter chlorine/bromine dispensers.