Check the listing for details. Captain O-Ring- U9-362 O-Ring for Pentair, Sta-Rite, Pool Union Fitting (3 Pack). Condition: New. Listed at 9.99 USD. Captain O-Ring- Replacement U9-362 O-Ring for Pentair, Sta-Rite, Pool Union Fitting (3 Pack) Product Features: Part Number: Pentair U9-362 (also called O-244, Doughboy 3081227, Lasco 80231, Pentair/American 390066, Sta-Rite U9362, and Sta-Rite/SwimQuip 355051245) For Use With: Sta-Rite System3 Modular Media SM Series Pool and Spa Cartridge Filter Model S7M120, S7M400, S8M150, S8M500, Sta-Rite System:3 SD Series Pool and Spa D.E. Filter Model S7D75, S8D110, Sta-Rite IntelliPro Variable Speed Pool and Spa in Ground Pump, Sta-Rite FullFloXF Backwash Pool and Spa Valve, Sta-Rite Bronze Pool and Spa Valve, Dyna-Wave Pump, 1-1/2 Inch and 2 Inch MultiPort Valve, Plastic Valve, Max-E-Pro Series Pump, Dyna-Glass/Dyna-Max Pump, Dyna-Pro/Dyna-Pro E Pump Molded from the OEM spec Buna N 70 Duro rubber for long lasting durability like the o-ring that came with your unit when it was new. Package contains three (3) o-rings. Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA! The U9-362 o-ring is a replacement o-ring for your Sta-Rite SM Multiport Valve Union (1-1/2 or 2 inch). These union o-rings are found on Sta-Rite System:3 Modular Media SM Series Pool and Spa Cartridge Filter Model S7M120, S7M400, S8M150, S8M500, Sta-Rite System:3 SD Series Pool and Spa D.E. Filter Model S7D75, S8D110, Sta-Rite IntelliPro Variable Speed VS Pool and Spa in Ground Pump, Sta-Rite FullFloXF Backwash Pool and Spa Valve, Sta-Rite Bronze Pool and Spa Valve, Dyna-Wave Pump, 1-1/2 Inch and 2 Inch MultiPort Valve, Plastic Valve, Max-E-Pro Series Pump, Dyna-Glass/Dyna-Max Pump, Dyna-Pro/Dyna-Pro E Pump, and any other unit that calls for the U9-362 part number (or list of part numbers below). The U9-362 o-ring also goes by the following part numbers: O-244, Doughboy 3081227, Lasco 80231, Pentair/American 390066, Sta-Rite U9362, and Sta-Rite/SwimQuip 355051245 O-Ring Dimensions: 2.60” Inside Diameter (Slightly over 2-1/2”), 0.14” Thick (Slightly over 1/8”), 2.88” Outside Diameter (About 2-7/8”). Package contains three (3) o-rings. Manufactured and warrantied by Captain O-Ring LLC.