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PRB35-IN spa filter equivalents
Part number PRB35-IN appears in 2 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-4335 cartridge (OEM 74148)
| OEM | 74148 |
|---|---|
| Unicel | C-4335 |
| Pleatco | PRB35-IN |
| Filbur | — |
| Size | 4-15/16" × 9-1/4", 35 sq ft |
Sources
- Unicel 2026 Replacement Guide — OEM Cross Reference, PDF p.29; spec table PDF p.7 (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 →Sundance C-4335 cartridge (OEM 6000-136)
| OEM | 6000-136 |
|---|---|
| Unicel | C-4335 |
| Pleatco | PRB35-IN |
| Filbur | — |
| Size | 4-15/16" × 9-1/4", 35 sq ft |
Sources
- Unicel 2026 Replacement Guide — OEM Cross Reference, PDF p.58; spec table PDF p.7 (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 →