• Part #7CH-552 | 52 Square Feet | 10-1/2" Length | 2" MPT Threaded Bottom

The Unicel 7CH-552 is a premium replacement filter cartridge engineered for optimal spa and hot tub water clarity. Its durable, pleated polyester media efficiently traps dirt, debris, and contaminants, safeguarding both water quality and vital equipment.

• 🔄 Universal Fit – Fits many spa and hot tub brands requiring a 52 sq. ft., 10-1/2" cartridge with 2" male pipe thread (MPT) bottom fitting
• 💧 High-Performance Filtration – Maximized surface area for superior dirt-holding capacity and longer filter cycles
• 🔧 Simple Installation – Easily replaces your existing filter; just unscrew and install without tools
• 🛡️ Long-Lasting End Caps – Chemical-resistant and crack-resistant for extended use
• 🧼 Reusable & Cleanable – Rinse as needed for a prolonged cartridge lifespan

• Square Footage: 52 sq. ft.
• Length: 10-1/2"
• Diameter: 7"
• Top: Closed with handle
• Bottom: 2" MPT (Male Pipe Thread)

• Replaces: Pleatco PPM50-SC, Filbur FC-3960, and other equivalent 52 sq. ft. spa cartridges with a 2" MPT bottom fitting

1. Turn off spa power and remove the filter cover.
2. Unscrew and remove the old cartridge.
3. Insert Unicel 7CH-552 and screw securely into place.
4. Replace filter cover and restore power.
5. Rinse cartridge every 2–4 weeks for best results.

✨ Enjoy sparkling, healthy water with Unicel’s trusted quality. Replace your spa filter every 12 months or as needed for continuous protection and performance.