Pentair Impeller 20 HP | CSPH/CCSPH Series Commercial Pump | 16830-0212

The Pentair 16830-0212 is the OEM replacement impeller for the CSPH/CCSPH Series 20 HP commercial pump. If your pump is losing flow, cavitating, or showing signs of impeller wear at the 20 HP rating, this is the direct-fit replacement engineered for these high-demand commercial units. The impeller is the rotating component at the heart of the pump's hydraulic end — it accelerates water from the suction port and drives it through the volute under pressure. At 20 HP, the CSPH/CCSPH series operates under significant hydraulic load; a worn or damaged impeller directly reduces flow output and places additional strain on the motor. Match the part number on your existing impeller before ordering to confirm the 20 HP variant is correct for your unit. Specifications Pentair Part Number 16830-0212 Part Description Impeller — 20 HP Quantity Included Each (1) Fits Into Brand Equipment Line Model / Part Number Notes Pentair CSPH/CCSPH Series Commercial Pump CSPHN3-1451 Impeller for 20 HP models Pentair CSPH/CCSPH Series Commercial Pump CCSPHN3-1451 Impeller for 20 HP models Pentair CSPH/CCSPH Series Commercial Pump CSPH2N3-145 Impeller for 20 HP models Pentair CSPH/CCSPH Series Commercial Pump CCSPH2N3-145 Impeller for 20 HP models Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Pro Tip The CSPH/CCSPH series is available across multiple horsepower ratings — confirm the 20 HP designation on your pump's nameplate and on the face or hub of the existing impeller before ordering. Impellers are HP-specific; installing the wrong rating will result in incorrect hydraulic performance. While the pump is disassembled for impeller replacement, inspect the shaft seal and wear ring for signs of wear — servicing these components at the same time avoids a repeat teardown. Impeller replacement on commercial pump equipment of this class should be performed by a qualified pool service technician.