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Unicel C-8399 Filter Cartridge

  • $65.99

Unicel C-8399 Filter Cartridge for Caldera Spas


Unicel filter cartridges are some of the finest filters you can by for replacements for your spa. These filters meet and sometimes exceed  OEM filters because they are made with the best materials. They are designed to last longer and be stronger than other cheaper alternatives. All Unicel filters are made in the USA, ensuring your confidence with the highest quality.

What’s in the box

  • 1 x Unicel C-8399 Filter Cartridge

Filter Specs

  • Filtration Sq Ft: 100
  • Outer Diameter: 8"
  • Length: 16-1/2"
  • Top: Semi-Circular Handle
  • Bottom: Open with Lip Seal
  • Pleat Count: 259
  • Media Weight: 3 oz
  • OEM Part #: 1039607 & 73722

Recommend For

Caldera Spas

**For hot tub compatibility please refer to the table in the photo section**

If you are not sure about the filter that you need, please contact us through our chat or at