Specs: Part Type - Gasket Jet Part Type - Gasket/O-Ring Manufacturer - Waterway Model - Old Faithful Inside Diameter - 4-9/16"id Kit - No Application - Category - Jet Application Manufacturer - Waterway Application Model - Old Faithful Application - Part - Wall Fitting Manufacturer Part Number - 711-7300 Gasket Inside Dimension - 4-9/16"id Outside Diameter - 5-11/16"od