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SKU: 980538

Malibu Relay/Rhythm Hot Spot Spa Cartridge OC-810C

Malibu Relay/Rhythm Hot Spot Spa Cartridge OC-810C

NOTE: This product comes with Count (1) item per package

$37.49 $69.99
Shipping calculated at checkout.

ALL SALES FINAL - Read More

During our Total Liquidation Sale, all sales will be final for purchases made on or after 9/3/2026. Exchanges are permitted only for merchandise that is defective or damaged upon receipt. For issues covered under a manufacturer's warranty, please contact the manufacturer directly.

To read more about this sale, please see our FAQ page.
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  • OC Part #: OC-810C
  • OC Reference Number: WSOC.WTK810C-2P
  • Application: Spa
  • Diameter: 8 ½" (216 mm)
  • Length: 10 ½" (267 mm)
  • Top Hole: 3" (76 mm)
  • Bottom Hole: 3" (76 mm)
  • Media Weight: 102.0000 g/m^2 (3 oz/yd^2)
  • Media Sq. Feet: 65 sq. ft. (6.0400 sq m)
  • Description: Watkins Hot Spring Spas upgrade from PWK45N
  • Manufacturer Part #: 31114
  • Made in America

This Cartridge Replaces:

  • PLEATCO: PWK65
  • UNICEL: C-8465
  • FILBUR: FC-3960
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