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6540-497 spa filter equivalents
Part number 6540-497 appears in 1 cross-reference row below. Each row lists the OEM, Unicel and Pleatco numbers that the source documents treat as interchangeable, plus the cartridge size so you can confirm against your old filter.
The same numbers, on one page, are in the cross-reference lookup. A schedule for this part number, and the buy link, are on the replacement schedule and reorder page. Published intervals by brand are in the replace and clean calculator.
Sundance C-4305 cartridge (OEM 6540-497), 4-15/16" (125 mm) × 14-7/8" (378 mm), 50 sq ft. Unicel C-4305, Pleatco PMT50.
Unicel C-4305
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| OEM | 6540-497 |
|---|---|
| Unicel | C-4305 |
| Pleatco | PMT50 |
| Filbur | FC-1630 |
| Size | 4-15/16" (125 mm) × 14-7/8" (378 mm), 50 sq ft |
Sources
- Unicel 2026 Replacement Guide: OEM cross reference (Sundance section), PDF p.59 (printed p.55); spec table PDF p.9 (printed p.5) (PDF)
- Pleatco 2023 Catalog: Unicel-to-Pleatco cross reference, PDF p.47 (PDF)
- Filbur Catalog & Reference Guide: Product by Pool/Spa Manufacturer (OEM), Sundance, printed p.52 (PDF p.27) (PDF)
Not in sources: no model/model-year fitment in sources.
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