Back Up Ring - Valve Stem Part Number 11508

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Replacement Back-Up Ring The Giant Pumps 11508 is a new back-up ring for the valve stem inside unloaders. It is used to replace one that is worn to help ensure your pump functions properly. This back-up ring is constructed with the same material as the original to deliver the same chemical compatibility and longevity. Since this is a genuine OEM part, it is sure to fit the recommended unloader models. Specifications: Manufacturer: Giant Pumps Part Number: 11508 Item: Back-Up Ring, Valve Stem Compatible Unloaders: 22910A 22910A-01 22910AR 22910AR-01 22911A 22911AR 22911A-01 22912A 22912A-01 22912AR 22912AR-01 22913A 22913A-01 22913AR 22913AR-01 Show more