Generic O-Ring [20-1/2" ID] [5/16" CS] O-103 (O-103) timeclock and R185B heater applications where

and R185B heater applications where the supported bypass assembly needs a new shaft

When an older valve is no longer trustworthy or has been damaged during service

supporting safer tablet containment and routine refill access

Black skirt with roller set for compatible Poolvergnuegen 2-wheel and 4-wheel cleaners

Generic O-Ring [20-1/2" ID] [5/16" CS] O-103 (O-103) timeclock and R185B heater applications whereAn O ring helps create a dependable seal at a compatible very large circular connection, and this generic version is sized with a 20 1 2 inch inside diameter and 5 16 inch cross section using the O 103 reference. When a large O ring with this profile becomes worn, flattened, or cut, the assembly can lose the sealing support it should maintain around the full circumference. The 5 16 inch cross section gives this O ring practical value because larger