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PRB50-IN spa filter equivalents
Part number PRB50-IN appears in 3 cited 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.
Caldera C-4950 cartridge (OEM 302005)
| OEM | 302005 |
|---|---|
| Unicel | C-4950 |
| Pleatco | PRB50-IN |
| Filbur | — |
| Size | 4-15/16" × 13-5/16", 50 sq ft |
⚠ Unverified / possible conflict: this row has not been fully confirmed against a second source. Gaps: OEM list ambiguous across lines; no Filbur equivalent sourced; no model-year range in source. Measure your old cartridge before ordering.
Sources
Full details & buy options →Jacuzzi C-4950 cartridge (OEM 373045)
| OEM | 373045 |
|---|---|
| Unicel | C-4950 |
| Pleatco | PRB50-IN |
| Filbur | — |
| Size | 4-15/16" × 13-5/16", 50 sq ft |
Sources
- Unicel 2026 Replacement Guide — OEM Cross Reference, PDF p.41; spec table PDF p.8 (PDF)
- Pleatco 2023 Catalog — Unicel-to-Pleatco cross reference, PDF p.43 (PDF)
Not in sources: Same OEM P/N listed for 25 and 50 sq ft; no Filbur equivalent sourced; no model-year range in source.
Full details & buy options →Sundance C-4950 cartridge (OEM 6540-471)
| OEM | 6540-471 |
|---|---|
| Unicel | C-4950 |
| Pleatco | PRB50-IN |
| Filbur | — |
| Size | 4-15/16" × 13-5/16", 50 sq ft |
Sources
- Unicel 2026 Replacement Guide — OEM Cross Reference, PDF p.58; spec table PDF p.8 (PDF)
- Pleatco 2023 Catalog — Unicel-to-Pleatco cross reference, PDF p.43 (PDF)
Not in sources: no Filbur equivalent sourced; no model-year range in source.
Full details & buy options →