Check the listing for details. #13305 O-Rings for Fleck / Rainsoft 2510, 5600, 9000, 9100 Valves (4 Pack). Condition: New. Listed at 14.59 USD. #13305 O-Rings for Fleck / Rainsoft 2510, 5600, 9000, 9100 Valves (4 Pack) Product Features: Includes four (4) Fleck / Rainsoft #13305 O-Rings The 13305 o-ring is found in Fleck 2510, 5600, 9000, and 9100 Valves Outside diameter is approximately 1-1/8" Manufactured and Warrantied by Captain O-Ring LLC Assembled in the USA! The #13305 o-ring is found in Fleck/Rainsoft water softener valves. The #13305 o-ring is most commonly used in the below applications: - Fleck 2510/2510 Econominder (Control Valve, Meter, Bypass Valve) - Fleck 5600/5600 Econominder (Adapter Coupling, Bypass Valve, Meter Body) - Fleck 9000/9100/9500 (3/4" Meter Assembly, 1" Meter Assembly, Second Tank Assembly, Bypass Valve) Note: Check your product manual to ensure that you are looking for o-ring part #13305. If you are unsure of the o-ring you need, consult your product manual or contact Captain O-Ring. What to expect: This product contains four (4) o-rings packaged in a resealable zip-top bag with Captain O-Ring branded packaging. Manufactured and warrantied against defect for one year by Captain O-Ring LLC. "Captain O-Ring" is a registered trademark of Captain O-Ring LLC. Assembled in the USA!