Pentair Impeller Washer | CSPH/CCSPH Series Commercial Pump | 38917-0203 Inlets & Skimmers and flush with your pool

and flush with your pool deck

cross-reference the part number molded or stamped on your existing lid against R172385

and leaves no residue• Crystal clear formula—no cloudiness or buildup• Designed for all spa

it delivers consistent water clarity and long-lasting filtration performance across regular spa use cycles

Pentair Impeller Washer | CSPH/CCSPH Series Commercial Pump | 38917-0203 Inlets & Skimmers and flush with your poolThe Pentair 38917 0203 is the OEM replacement impeller washer for the CSPH and CCSPH Series commercial pumps. The impeller washer seats between the impeller and the pump shaft assembly, maintaining proper axial positioning and protecting mating surfaces from wear under the high torque loads characteristic of large commercial pump operation. A damaged or missing washer can allow impeller movement that accelerates wear on adjacent components and