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.
|Manufacturer Part #||6540-497|