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20241-238 spa filter equivalents
Part number 20241-238 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.
Saratoga Spas 4CH-20 cartridge (OEM 20241-238), 4-5/8" (117 mm) × 6-3/4" (171 mm), 20 sq ft. Unicel 4CH-20, Pleatco PSG25P4.
Unicel 4CH-20
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| OEM | 20241-238 |
|---|---|
| Unicel | 4CH-20 |
| Pleatco | PSG25P4 |
| Filbur | FC-0125 |
| Size | 4-5/8" (117 mm) × 6-3/4" (171 mm), 20 sq ft |
Sources
- Unicel 2026 Replacement Guide: Saratoga list PDF p.55: 20241-238 = 4CH-20, 4-5/8" x 6-3/4", 20 sq ft, 1-1/2" MPT. Spec table PDF p.7: 204 pleats, 20 sq ft. Price index PDF p.88: 20 sq ft. Vita list PDF p.63: PVT 25 = 4CH-20 at 25 sq ft. (PDF)
- Pleatco 2023 Catalog: Spec table PDF p.31: PSG25P4, OEM 20241-238, 4-3/4" x 6-1/2", 25 sq ft. Deactivated list: PHC25 replacement N/A. (PDF)
- Filbur Catalog & Reference Guide: Saratoga section PDF p.25: FC-0125 at 15 sq ft. Size table column 25. Vita section PDF p.28: 25 sq ft for PVT-25. (PDF)
Not in sources: Area 20 (Unicel spec, price index, Saratoga line) vs 25 (Unicel Vita line, Pleatco, Filbur Vita section, Filbur size-table column) vs 15 (Filbur Saratoga section). Length 6-3/4" vs Pleatco 6-1/2". Outside diameter 4-5/8" vs Pleatco 4-3/4"..
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