Generic O-Ring [21" ID] [1/2" CS] O-485 (O-485) miscvalves the impeller is one of

the impeller is one of the most important parts in the rebuild

Complete wet ends are especially useful when the wet side has multiple worn components and replacing them together makes more sense than rebuilding part by part

and EW-100 filter applications

This type of part is especially useful when the original microbellow has cracked

Quantity 2

Generic O-Ring [21" ID] [1/2" CS] O-485 (O-485) miscvalves the impeller is one ofAn O ring helps create a dependable seal at a compatible extra large circular connection, and this generic version is sized with a 21 inch inside diameter and 1 2 inch cross section using the O 485 reference. When a very large heavy profile O ring becomes brittle, worn, or compressed, the assembly can lose the sealing support it should maintain across the full circumference. The 1 2 inch cross section gives this O ring practical value because very