Unicel Replacement Filter Cartridge 25 sf | 4CH-24 AQS This complete assembly includes the

This complete assembly includes the locking ring

providing dependable performance in demanding environments

which often exceed 60 decibels

~3% elemental copper) :contentReference[oaicite:7]{index=7}

System Compatibility: Zodiac Nature2 DuoClear® and Fusion® Systems

Unicel Replacement Filter Cartridge 25 sf | 4CH-24 AQS This complete assembly includes theUnicel 4CH 24 Spa Pool Filter Cartridge (25 sq ft) The Unicel 4CH 24 is a high quality replacement filter cartridge commonly used in spas and small pool filtration systems. It offers reliable filtration performance, helping keep water clear by capturing debris, oils, and fine particles. Key Features 25 sq ft of pleated filter media enough surface area for effective filtration on smaller pools or spas. 173 pleats with spun bonded polyester media