Opens an Amazon search for this part number, not one listing we pre-checked.
PMAX25P4 spa filter equivalents
Part number PMAX25P4 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.
Maax Spas 5CH-25 cartridge (OEM 108868), 5-5/8" (143 mm) × 6" (152 mm), 25 sq ft. Unicel 5CH-25, Pleatco PMAX25P4.
Search this part on Amazon
Disclosure: we may earn a commission from qualifying purchases made through retailer links on this site, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Search on Amazon opens an Amazon search for this part number, not one listing we pre-checked. These are affiliate links. Product photos are omitted unless Amazon supplied one through the Product Advertising API or a SiteStripe image link. Verify dimensions before ordering. See our affiliate disclosure.
| OEM | 108868 |
|---|---|
| Unicel | 5CH-25 |
| Pleatco | PMAX25P4 |
| Filbur | not listed |
| Size | 5-5/8" (143 mm) × 6" (152 mm), 25 sq ft |
Sources
- Unicel 2026 Replacement Guide: Maax Spas of AZ, PDF p.44 (printed p.40): Elegant, Intrigue and Joli = 108868 = 5CH-25, 25 sq ft, 5-5/8" x 6", 1-1/2" MPT. Spec table PDF p.11 (printed p.7): 201 pleats, 3 oz, 25 sq ft. (PDF)
- Pleatco 2023 Catalog: Spec table PDF p.32: PMAX25P4, OEM 108868, 5-3/4" x 6", 1-1/2" MPT, 25 sq ft. Cross-reference PDF p.47: 5CH-25 = PMAX25P4. (PDF)
Not in sources: Diameter 5-5/8" (Unicel) versus 5-3/4" (Pleatco). No Filbur equivalent found..
Full details → · All Maax Spas spa filters · Which fitting you need · How to install it