The Unicel C-5397 is a 5000 Series 80 sq. ft. replacement filter cartridge engineered for spas and small pool systems demanding reliable, consistent filtration. With 223 precision-pleated folds of 3 oz. Reemay 2033 polyester media, this cartridge delivers superior surface area per square inch capturing fine particulates while maintaining water flow efficiency.
Specifications
| Filter Area | 80 sq. ft. |
| Length | 17 13/16″ |
| Outer Diameter | 5 5/16″ |
| Top Inner Diameter | 2 1/8″ |
| Bottom Inner Diameter | 2 1/8″ |
| Material | 3 oz. Reemay 2033 |
| Pleat Count | 223 |
| Top Cap: Open | Bottom Cap: Open |
Fits Into:
| OEM Brand | Product Name | Part Number | Notes |
| Leisure Bay Spas | S2/G2 Spa | ||
| Pentair Rainbow Plastics | R173601 | ||
| QCA | |||
| Rec Warehouse | 303434 | ||
| Waterway Plastics | Top Load Filter | 817-0016 | Waterway markets this filter housing as a “100 sq. ft. top load” system; the C-5397 is the correct replacement cartridge for this housing. |
(This is not an exhaustive list.)
Pro Tip: Verify fit using your existing cartridge’s outer diameter (5 5/16″) and length (17 13/16″) before ordering. Both end caps are open confirm your filter housing uses an open/open configuration.
Also known as: C5397
