Check the listing for details. Pentair R172009 Cap O-Ring Replacement Pool and Spa Filter and Feeder. Color: Black, Condition: New. Listed at 13.89 USD. Pentair R172009 Cap O-Ring Replacement Pool and Spa Filter and Feeder Product Description 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 / pool and spa feeder model 300, 302, 300-29X, 320, 322. Also fits Pentair Rainbow automatic / feeder extensions. Features Genuine Pentair brand replacement parts 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 Shipping Payment Returns Shipping for this item is free in the 48 continental United States. We do not offer shipping to Alaska, Hawaii, Puerto Rico, US Territories, APO & FPO. After your order has been shipped, you will receive an e-mail with the name of the carrier and the tracking number. We accept payments through PayPal. You may use a major credit card via PayPal. For all “Buy It Now” items, immediate payment is required. We permit returns if you are not satisfied with your purchase. Your return request must be initiated within 30 days of the purchase date. To initiate a return, please contact us through the eBay Message Center. You will receive an RMA number to ensure proper handling of the return. We do not provide refunds for a return WITHOUT an RMA number. You will be refunded in full, minus the shipping and handling expenses incurred at time of purchase.