Generic O-Ring [19-1/8" ID] [3/8" CS] O-420 (O-420) airbuttons Helps capture leaves and debris

Helps capture leaves and debris

Designed for compatible pump electrical connection applications

Helps restore full skimmer functionality

or housing assemblies where exact replacement dimensions are important to dependable closure

Generic O-Ring [19-1/8" ID] [3/8" CS] O-420 (O-420) airbuttons Helps capture leaves and debrisAn O ring helps create a dependable seal at a compatible very large circular connection, and this generic version is sized with a 19 1 8 inch inside diameter and 3 8 inch cross section using the O 420 reference. When a large heavy profile O ring becomes compressed, brittle, or damaged, the assembly can lose the sealing support it should maintain around the full circumference. The 3 8 inch cross section gives this O ring practical value because broader