Cord O-ring for tank replacement
Fits Sta-Rite System 3 Modular Media SM series pool and spa cartridge filter model S8M150, S8M500
Compatible with Sta-Rite System 3 SD series pool and spa D.E. filter model S8D110
Fits with Sta-Rite System 3 SS series pool and spa sand filter model S8S70
Measures 25-inch size