Cartridge catalogC-4326
Replacement cartridge
C-4326
Unicel
A source-reviewed replacement used with 12 compatible filters. Confirm the equipment model and physical details before ordering.
- Application
- Spa filters
- Compatible filters
- 12
- Specifications
- Dimensions reviewed
- Last reviewed
- July 26, 2026
Cartridge measurements
Size & end caps
- Outside diameter
- 5 in
- Cap-to-cap length
- 13 5/16 in
- Top
- Open2 1/8 in opening
- Bottom
- Open2 1/8 in opening
Compatibility
Compatible pool and spa filters
Spa filterPDC Spas Luxury Series Bali Hot Tub1 filter element needed→Spa filterPDC Spas Luxury Series Biscayne Hot Tub1 filter element needed→Spa filterPDC Spas Luxury Series Fiji Hot Tub1 filter element needed→Spa filterPDC Spas Luxury Series Malibu Hot Tub1 filter element needed→Spa filterPDC Spas Luxury Series Reno Hot Tub1 filter element needed→Spa filterPDC Spas Premium Series Barbados Hot Tub1 filter element needed→Spa filterPDC Spas Premium Series Carmel Hot Tub1 filter element needed→Spa filterPDC Spas Premium Series Catalina Hot Tub1 filter element needed→Spa filterPDC Spas Premium Series Denali Hot Tub1 filter element needed→Spa filterPDC Spas Premium Series Freeport Hot Tub1 filter element needed→Spa filterPDC Spas SE Series 1990-present1 filter element needed→Spa filterPDC Spas LX Series 1990-present1 filter element needed→
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