Cartridge catalogC-4405
Replacement cartridge
C-4405
Unicel
A source-reviewed replacement used with 6 compatible filters. Confirm the equipment model and physical details before ordering.
- Application
- Spa filters
- Compatible filters
- 6
- Specifications
- Dimensions reviewed
- Last reviewed
- July 26, 2026
Cartridge measurements
Size & end caps
- Outside diameter
- 5 in
- Cap-to-cap length
- 6 5/8 in
- Top
- Open2 1/8 in opening
- Bottom
- Open2 1/8 in opening
Compatibility
Compatible pool and spa filters
Spa filterPDC Spas LifeStyle Series Mirage Hot Tub1 filter element needed→Spa filterPDC Spas LifeStyle Series Seasons Hot Tub1 filter element needed→Spa filterPDC Spas LifeStyle Series Summit Hot Tub1 filter element needed→Spa filterPDC Spas LifeStyle Series Twilight Hot Tub1 filter element needed→Spa filterPDC Spas X-Degree Series XD2 Spa Zone1 filter element needed→Spa filterPDC Spas River Series 2010-present1 filter element needed→
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