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WS.CAL2930 Replacement for Unicel C-4970

Unicel C-4970 R

Retail: $45.99 /ea
You Save: 13%
As low as
Retail: $45.99
You Save: 13%
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Filters are essential to keeping your pool or spa in tip-top shape. The WS.CAL2930 Replacement for Unicel C-4970 Pool and Spa Filter is a compatible replacement for the Water 75 In-line, Waterway 817-7500, UNicel C-4970, and Pleatco PCAL75. This filter will safeguard you from dangerous particles such as hair, bathing suit fibers, and dirt without you even noticing. This replacement filter is compatible with pools and spas made by Waterway Plastics, Leisure Bay Spas, and more. You should replace your hot tub spa filter every 6 to 12 months to sustain peak performance.


  • Part Number: WS.CAL2930
  • Pack Size: 1
  • Filter Life (Months): 6 - 12
  • Diameter: 4-15/16"
  • Top Diameter: Open
  • Bottom Diameter: 2-1/8"
  • Product Weight: 3 oz
  • Surface Area: 75 Sq. Ft.
  • Product Length: 23-5/8"

Compatible Parts:

The WS.CAL2930 Replacement for Unicel C-4970 is the correct replacement for the following part numbers:

Part Number
Filbur FC-2930
WATERWAY 817-7500
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