Pentair R172009 Cap O-Ring Replacement Pool and Spa Filter and Feeder

This cap o-ring is designed to use with Pentair standard and high square feet module cartridge filters and also compatible with Pentair Rainbow automatic chlorine/bromine pool and spa feeder model 300, 302, 300-29X, 320, 322. Also fits Pentair Rainbow automatic chlorine/bromine feeder extensions.

• O-ring for cap
• Used with the following Pentair Automatic Feeders: Model 300, 302, 300-19, 300-29, Model 300-29X, Model 320 & Model 322