Pentair R172223 Housing O-Ring Replacement Pool/Spa Filter and Leaf Traps<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Housing o-ring replacement</li><li>Fits 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</li><li>Also fits Pentair Dynamic RCF-RTL series cartridge filter chlorine/bromine dispensers</li><li>Also compatible with Pentair Predator II mini-cellular media pool and spa cartridge filters</li><li>Also fits Pentair pool and spa leaf trap models 179， 179-HDB， 179-C， 179C HDB， 186-A， 186-B， 186-C， 186-D</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41R65cWZTML.jpg" noproxy>