Unicel C4975

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Unicel Cartridge C4975 The Unicel C-4975 hot tub filter has the 2-1/8 inch holes on the top and bottom and is 20-1/8 inches long with a 4-15/16 (5) inches diameter. For optimal fit and performance, verify that this filter cartridge matches the dimensions of the old filter in your spa. Diameter: 4-15/16"Length: 20-1/8"Top: 2-1/8"Bottom: 2-1/8"Case Size: 4Related Products:PRB75OC1475PA-AP40751PA-1475FC-2395 Show more