🔄 Unicel C-4401 Replacement Filter Cartridge – Set of 2

Maintain pristine water in your pool or spa with the Unicel C-4401 Replacement Filter Cartridge (2-pack). Specially engineered for reliable filtration, these cartridges trap dirt, debris, and contaminants to help extend the life of your pool or spa system.

• 🧊 Compatible with: Rainbow/Pentair Dynamic Series IV DFM, Waterway 25 sq. ft. filter systems, and select spa filter housings (always confirm compatibility with your model)
• 💧 Filtration Area: 25 sq. ft. per cartridge
• 📏 Dimensions: 4 5/8" diameter x 8" length, open top and bottom (2 1/8" inner diameter)
• 🛡️ Durable Media: Pleated polyester for long-lasting, efficient filtration and easy cleaning
• 🔄 OEM Replacements: Directly replaces Rainbow/Pentair R173434, Dynamic IV DFM, Waterway 817-0040, and other compatible parts
• 🔧 2-Pack Value: Ideal for dual cartridge setups or to have a spare on hand for quick changes

✨ Benefits:

• Boosts water clarity and system efficiency
• Reduces workload on pumps and equipment
• Quick, tool-free installation—just swap old for new

📋 Directions for Use:

1. Power off your pump and relieve filter pressure.
2. Open housing and remove used cartridge.
3. Rinse new Unicel C-4401 with fresh water and place in housing.
4. Secure lid and restart system, checking for proper operation and leaks.
5. For optimal results, rinse cartridges every 2-4 weeks and replace annually or as needed.

🛠️ Not sure if this is the right fit? Premier Pool & Spa experts can guide you to the perfect Unicel cartridge for your system and answer all your pool & spa maintenance questions.