Generic O-Ring [19-1/2" ID] [5/16" CS] (O-200) airsupply Helps restore convenient secondary access

Helps restore convenient secondary access to spa functions

Supports cleaner short-run installation work

Matching the correct white Galaxy assembly helps preserve intended sizing and cleaner installation results

and SherLok Lock Ring is designed for compatible applications where the original ring has cracked

and this Filbur FC-2710 cartridge is designed for C-4440 and PSD40 applications

Generic O-Ring [19-1/2" ID] [5/16" CS] (O-200) airsupply Helps restore convenient secondary accessAn O ring helps create a dependable seal at a compatible very large circular connection, and this generic version is sized with a 19 1 2 inch inside diameter and 5 16 inch cross section using the O 200 reference. When a large heavy profile O ring becomes worn, flattened, or cut, the assembly can lose the sealing support it should maintain. The 5 16 inch cross section gives this O ring practical value because large diameter sealing surfaces often