Unicel 25 sq. ft. Replacement Filter Cartridge | C-4326
- In stock, ready to ship
- SKU:
- C-4326
-
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About This Item
The Unicel C-4326 is a 4000 Series 25 sq. ft. replacement filter cartridge engineered for precision fit across a wide range of spa and pool filter systems. With 106 pleats of 3 oz. Reemay 2033 polyester media and a dual open-end configuration, it seats cleanly into Waterway top-load in-line housings and Pentair Dynamic Series filters without modification.
Specifications
| Filter Area | 25 sq. ft. |
| Length | 13 5/16" |
| Outer Diameter | 4 15/16" |
| Top Inner Diameter | 2 1/8" |
| Bottom Inner Diameter | 2 1/8" |
| Material | 3 oz. Reemay 2033 |
| Pleat Count | 106 |
|
Top Cap: Open
|
Bottom Cap: Open
|
Fits Into:
| OEM Brand | Product Name | Part Number | Notes |
| Waterway Plastics | Top Load (In-Line) 25 sq. ft. / TWM Cartridge Filter Pack | 817-2500 | |
| Pentair / Rainbow Plastics | Dynamic Series I (RDC-25, RDC-25S), Series II & III (RTL/RCF-25), Series IV (DFM, DFML) | R173429 / 17-2327 | Can also be replaced with C-4625 (4 oz. media) |
| Custom Molded Products | Top Mount Skim / EZ Twist Top Mount Skim / Top Load Pressure | 25392 | |
| Coleman Spas | 3301-2242 / 100586 | ||
| Beachcomber | 3005845 | ||
| Orca Bay Spas | 2501 | ||
| Jacuzzi Premium | J200 Series | 373045 | |
| Nordic Hot Tubs | Select Models | Models dated after 7/99 only | |
| Also known to fit select models from: Accent Spas, Acryx-Maax Spas, Apollo Spas, Aqua Mystic, Blue Falls Mfg., Dakota Spas, Emerald Spas, Moonwater Spas, PDC Spas, QCA, Rec Warehouse, River Valley Spas, Safari Spas, Signature Spas, Streamline Spas, Thermo Spas of Connecticut, US Spas, Viking Spas, Rubadub Tub, Coast Mountain Spas, Honey Tubs, Spa Manufacturers Inc., Sun Ray Spas, Waters Edge Spas, Great Lakes Home & Resort, Islander Spas, Royal Spas, Zone Spas | |||
(This is not an exhaustive list.)
⚠️ IMPORTANT: VERIFY FIT BEFORE ORDERING
Compatibility varies by model and production year. Always confirm your existing cartridge measures 13 5/16" in length and 4 15/16" in outer diameter with open ends (2 1/8" I.D.) before purchasing.
Pro Tip: The C-4326 uses 3 oz. Reemay 2033 media — if your filter housing supports it, the Unicel C-4625 uses the same dimensions with a heavier 4 oz. media for extended service life between cleanings.
Also known as: C4326
