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PWW10 spa filter equivalents
Part number PWW10 appears in 2 cross-reference rows 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.
PDC Spas C-4310 cartridge (OEM FLT-101SK), 4-1/4" (108 mm) × 4" (102 mm), 10 sq ft. Unicel C-4310, Pleatco PWW10.
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| OEM | FLT-101SK |
|---|---|
| Unicel | C-4310 |
| Pleatco | PWW10 |
| Filbur | FC-3077 |
| Size | 4-1/4" (108 mm) × 4" (102 mm), 10 sq ft |
Sources
- PDC Spas (manufacturer filter guide, 2025): Nouveau, 1996–1999: FLT-101SK, 10 sq ft, 4-1/4" × 4", 2-1/16" holes, Pleatco PWW10 (PDF)
- Unicel 2026 Replacement Guide: PDC block and spec table PDF p.6 (printed p.2): C-4310, 4-1/4" × 4", 2-1/16" open both ends, 216 pleats, 3 oz, 10 sq ft (PDF)
- Pleatco 2023 Catalog: PDF p.31: PWW10 at 10 sq ft, 2-1/16" openings. PDF p.47: C-4310 = PWW10. (PDF)
- Filbur Catalog & Reference Guide: PDF p.8 (printed p.15) and PDC section printed p.45: FC-3077, 1-15/16" openings, C-4310, 10 sq ft (PDF)
Not in sources: End openings 2-1/16" (PDC, Unicel, Pleatco) vs 1-15/16" (Filbur FC-3077)..
Full details → · All PDC Spas spa filters · Which fitting you need · How to install it
Waterway Plastics C-4310 cartridge (OEM 817-0010), 4-1/4" (108 mm) × 4" (102 mm), 10 sq ft. Unicel C-4310, Pleatco PWW10.
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| OEM | 817-0010 |
|---|---|
| Unicel | C-4310 |
| Pleatco | PWW10 |
| Filbur | FC-3077 |
| Size | 4-1/4" (108 mm) × 4" (102 mm), 10 sq ft |
Sources
- Unicel 2026 Replacement Guide: Waterway list PDF p.64: 817-0010 = C-4310, 4-1/4" x 4", 10 sq ft. Spec table PDF p.6: open 2-1/16", 216 pleats. (PDF)
- Waterway Plastics Service Logic cartridge table: Fetched 2026-11-09: 817-0010, 10 sq ft skim filter (web page)
- Pleatco 2023 Catalog: PWW10 spec: 4-1/4" x 4", 2-1/16" open, 10 sq ft, OEM 817-0010. Cross-reference PDF p.47: C-4310 = PWW10. (PDF)
- Filbur Catalog & Reference Guide: Waterway section PDF p.28: FC-3077, OEM 817-0010, C-4310, 10 sq ft, top opening 1-15/16" (PDF)
Not in sources: Top opening 2-1/16" (Unicel, Pleatco) vs 1-15/16" (Filbur)..
Full details → · All Waterway Plastics spa filters · Which fitting you need · How to install it