Unicel C-4950 Replacement 50 SqFt Pool Hot Tub Filter Cartridge (4 Pack)

Pack of 4 replacement C-4950 pool and spa filter cartridges ensures your water stays clear so you can enjoy relaxing in your swimming pool or hot tub Features 50 square feet (212 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 End cap design includes a 2-1/8-inch ID and an open configuration for easy cartridge removal and replacement Durable end caps resist damage from chemicals and assure durability for the life of the cartridge Compatible with Bullfrog Spas, Cal Spas, Coleman Spas, Dynasty Spas, Pentair Pool Products, Rainbow Plastics, Sundance Spas, Sunrise Spas, Waterway Plastics, Custom Molded Products, Beachcomber, Artesian Spas, Jacuzzi Premium, Maax Spas of AZ, Caldera Spas, and more 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 Top/Bottom end cap ID: 2-1/8 inches OD: 4-15/16 inches Length: 13-5/16 inches Overall dimensions (L x W x H): 4.94 x 4.94 x 13.31 inches Quantity: 4