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Cal Spa / Sundance 50 Sq Ft Filter Cartridge CL-2810, 6540-497 - FC-1617

Availability: In Stock

Regular Price: $49.99

Sale Price $34.99

You Save: $15.00  (30%)

Quick Overview

**** These filter cartridges measure approximately 14-7/8 inches in length. To ensure you are ordering the correct filters please measure your existing filters for a match.****

This replacement hot tub filter cartridge is compatible with and replaces the 50 Sq Ft Cal Spa CL-2810, Sundance 6540-497 and Martec 220152 Filter Cartridges. These filters meet or exceed the original spa filters that came with your hot tub and are made from Reemay spun-bound polyester pleated filter media that features anti-microbial technology which prevents microbes such as mold, fungus, and bacteria from growing on your filters.

These replacement spa and hot tub filter cartridges are identical to Cal Spa part number CL-2810, Sundance part number 6540-497, Martec / Sonfarrel part number 220152, Sonfarrel / Advantage part number ELE-25, Filbur part number FC-1617, Unicel part number C-4305 and Pleatco part number PMT50. These filters are constructed with thermally bonded polyurethane caps and a punched PVC pipe core that will ensure consistent water flow through your filters along with the durability you depend on.

  • Replaces Cal Spa cartridge number CL-2810
  • Replaces Sundance cartridge number 6540-497
  • Replaces Martec/Sonfarrel number 220152
  • Replaces Sonfarrel/Advantage number ELE-25
  • Length: 14-7/8"
  • Diameter: 4-15/16"
  • Top: 2-1/8" Opening
  • Bottom: 2-1/8" Opening
  • 50 Square Feet
  • Filbur part number FC-1617
  • Unicel part number C-4305
  • Pleatco part number PMT50
  • Cross Reference: 46085
  • This is not an original Cal Spa cartridge

Fits spas from the following manufacturers:
Advantage Electric, Cal Spas, Dolphin Spas, Martec, Pageant Spas, Sonfarrel, Spas West, Sundance Spas, Sweetwater


To clean your spa filter remember these 4 simple steps; rinse, soak, rinse, dry. Rinse your filter out with a garden hose to remove any debris or dirt still attached to your filter. Next, soak your filter in a filter cleaner solution overnight then remove your filter from the solution and rinse with a garden hose. Set your filter in a sunny location and let it air dry completely. Finally, reinstall your spa filter per your manufacturer’s instructions.

Additional Information
Delivery Time 2-5 Business Days
Manufacturer Pleatco
Technical Specs

Length: 14 7/8"
Diameter: 4 15/16"
Top: 2 1/8" Opening
Bottom: 2 1/8" Opening
50 Square Feet

SKU APCC7151 / PLE-051-9242
Manufacturer Part # 6540-497
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