Unicel 4CH-21 19 Sq.Ft. Saratoga Filter, 4-5/8x8"L, Handle,1.5"MPT

💧 Unicel 4CH-21 Spa Filter Cartridge

Part # 4CH-21 | 19 sq. ft. | Saratoga replacement filter | 4-5/8 in. diameter x 8 in. length | Handle and 1.5 in. male pipe thread

The Unicel 4CH-21 is a high-quality replacement spa filter cartridge designed for Saratoga spas and other compatible hot tub systems that use this cartridge style. Built for reliable filtration, it helps capture dirt, debris, and fine particles to keep spa water cleaner and clearer while supporting proper circulation.

• ✅ Replacement for Saratoga filter systems
• ✅ 19 sq. ft. filtration area for efficient water cleaning
• ✅ 4-5/8 in. diameter x 8 in. length
• ✅ Handle top for easier removal and installation
• ✅ 1.5 in. male pipe thread connection
• ✅ Designed for consistent flow and dependable spa water clarity

Compatibility:

Use this cartridge only if your current filter matches the same dimensions, handle style, and 1.5 in. MPT connection. Verify your existing part number before ordering to ensure proper fit.

Installation Tips:

1. Turn off spa equipment before removing the old cartridge.
2. Unscrew the existing filter and clean the filter housing.
3. Install the new cartridge by threading it into place securely by hand.
4. Restore power and check for proper water flow and fit.

Helpful Maintenance:

For best performance, rinse the cartridge regularly and replace it when pleats become worn, damaged, or difficult to clean. Clean filtration helps reduce strain on pumps and improves overall spa water quality.

Replacement part: 4CH-21