Unicel C-4625 25 sq ft Replacement Pool/Spa Filter Cartridge
The Unicel C-4625 is a compact replacement filter cartridge designed for spas, hot tubs, and small pool filtration systems. It provides 25 square feet of pleated filtration media to trap debris and help maintain clean, clear water in smaller systems.
Key Features
- 25 sq ft of pleated polyester media for efficient fine-particle filtration.
- Open-end design for simple installation and removal.
- Durable polyester construction designed for repeated cleaning.
- Chemical-resistant materials suitable for chlorinated or bromine spa environments.
- Compact size ideal for spas, hot tubs, and small pool applications.
Specifications
- Brand: Unicel
- Part Number: C-4625
- Filtration Area: 25 square feet
- Outer Diameter: Approx. 4-15/16"
- Length: Approx. 13-5/16"
- Openings: Approx. 2-1/8" inner diameter (top and bottom)
- Media: Pleated polyester
When to Replace
Replace when water clarity decreases, system pressure increases, or the cartridge shows signs of wear such as collapsed pleats or damaged end caps. Regular replacement helps maintain proper circulation and filtration in spa or small pool systems.
Maintenance Tips
- Rinse regularly to remove trapped debris.
- Deep-clean periodically with a cartridge-safe cleaner to remove oils and sunscreen buildup.
- Inspect pleats and ends each time you clean the filter.
- Keep a spare on hand to rotate filters and extend service life.
