Featuring 50 square feet of 3-ounce basis weight media made of 100-percent polyester Reemay material, this Unicel 4CH-949 Cartridge Filter for Hot Tubs ensures high performance and dependable filtration over time. The uniform pleats and Reemay media deliver higher dirt-holding capacity and more time between cleanings. Plus, the smooth surface of the media makes it easy to maintain, resists degradation from chemicals, stands strong under pressure, and holds up to the rigors of multiple cleanings.

For optimal lifespan, clean the elements as per instructions and use a soft brush cleaning tool or filter cleaner for easy maintenance. Please note that the cartridge life depends on routine maintenance and spa water chemistry. Change your filter when there is a shorter cycle between cleaning, low water flow rate or high differential pressure, when the media has a tear, or if the center core collapses. The end cap is made of durable plastic that resists damage from chemicals and includes a 2-inch female SAE thread and a v-groove semi-circular handle for easy removal and replacement.

This 4CH-949 model of spa filters is compatible with Advanced Spa Design and Blue Ridge Spas.

The Unicel 4CH-949 Spa Cartridge Filter is clearly the optimal choice to keep your hot tub or spa water sparkling.

• Replacement 4CH-949 filter cartridge ensures your water stays clear so you can enjoy relaxing in your spa or hot tub
• Features 50 square feet (210 pleats) of 3-ounce basis weight media that catches debris and particles down to an average of 20 microns in size
• Sharp, uniform pleat folds maximize water flow, minimize pressure loss, and allow full use of the pleat surface to hold more debris
• Constructed with 100-percent polyester Reemay material that balances dirt-holding capacity, cleanability and durability with excellent chemical resistance properties
• Design includes a 2-inch female SAE thread and a v-groove semi-circular handle for easy cartridge removal and replacement
• Durable end caps resist damage from chemicals and assure durability for the life of the cartridge
• Compatible with Advanced Spa Design and Blue Ridge Spas
• Filter life depends on routine maintenance and spa water chemistry
• Change filter when there is a shorter cycle between cleaning, low water flow rate or high differential pressure, when the media has a tear, or if the center core collapses
• Media material: Spun-bonded polyester
• End cap material: Plastic
• OD: 4-15/16 inches
• Length: 13-1/2 inches
• Overall dimensions (L x W x H): 4.94 x 4.94 x 13.5 inches