Cal Spa Pump Union O-ring Gasket. Used Only On Older Existing Cal Spa Pump Unions. This Gasket Has The Small Size Oring And Will Only Fit WaterWay Union Part Number: 417-5120. Measures 2 15/16 Inches Outside With A 1 15/16 Hole. Rib Measures 2 9/16 Inches Center To Center.
Waterway part # 711-5120
This product has a 1-year manufacturer’s warranty. The warranty is void if the part is installed in a unit it is not compatible with.