Listing we opened and checked. Match the diameter, length and both fittings on this page before you order. The price is on Amazon; we do not print one.
C-5374 spa filter equivalents
Part number C-5374 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.
Cal Spas C-5374 cartridge, 5-5/16" (135 mm) × 14-13/16" (376 mm), 75 sq ft. Unicel C-5374, Pleatco PLBS75.
Unicel C-5374
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. Check price on Amazon opens the Unicel C-5374 listing we 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 | |
|---|---|
| Unicel | C-5374 |
| Pleatco | PLBS75 |
| Filbur | FC-2971 |
| Size | 5-5/16" (135 mm) × 14-13/16" (376 mm), 75 sq ft |
Sources
- Unicel 2026 Replacement Guide: OEM cross reference (Cal Spas section), PDF p.30 (printed p.26); spec table PDF p.11 (printed p.7) (PDF)
- Pleatco 2023 Catalog: Unicel-to-Pleatco cross reference, PDF p.47 (PDF)
- Filbur Catalog & Reference Guide: Product by Pool/Spa Manufacturer (OEM), Cal Spas, printed p.29 (PDF p.15) (PDF)
Not in sources: no model/model-year fitment in sources; Unicel lists no OEM part number for this brand entry.
Full details → · All Cal Spas spa filters · Which fitting you need · How to install it
Maax Spas C-5374 cartridge (OEM 107092), 5-5/16" (135 mm) × 14-13/16" (376 mm), 65 sq ft. Unicel C-5374, Pleatco PLBS75.
Unicel C-5374 Listing we opened and checked. Match the diameter, length and both fittings on this page before you order. The price is on Amazon; we do not print one.
| OEM | 107092 |
|---|---|
| Unicel | C-5374 |
| Pleatco | PLBS75 |
| Filbur | FC-2971 |
| Size | 5-5/16" (135 mm) × 14-13/16" (376 mm), 65 sq ft |
Sources
- Unicel 2026 Replacement Guide: Maax Spas of AZ PDF p.44: 107092 = C-5374, 65 sq ft, 5-5/16" x 14-13/16". Spec table PDF p.11: 223 pleats, 65 sq ft. S2/G2 line PDF p.43 (printed p.39): C-5374 at 75 sq ft. (PDF)
- Pleatco 2023 Catalog: PDF p.47: C-5374 = PLBS75. PDF p.32: PLBS75 at 75 sq ft, 5-5/16" x 14-3/4", OEM 817-0015, 303433, R173600. (PDF)
- Filbur Catalog & Reference Guide: FC-2971: 5-5/16" x 14-11/16", 65 sq ft, PLBS75, C-5374 (PDF)
Not in sources: Area 65 sq ft (Unicel spec table, the Maax line, and Filbur) versus 75 sq ft (Pleatco's PLBS75 spec, and Unicel's S2/G2 line). Length 14-13/16" (Unicel), 14-3/4" (Pleatco) or 14-11/16" (Filbur). No Maax model name. 107092 is not on the Pleatco spec line..
Full details → · All Maax Spas spa filters · Which fitting you need · How to install it