• Replacement Pool & Spa Filter: C-8600 filter cartridge features 75 square feet (153 pleats) of 4-ounce basis weight media that catches debris and particles down to an average of 20 microns in size, keeping your hot tub water clear
• Optimal Debris Capture: Filter pool cartridge has sharp, uniform pleat folds that maximize water flow, minimize pressure loss, and allow full use of the pleat surface to hold more debris
• Filter Media: Constructed with 100-percent polyester Reemay material that balances dirt-holding capacity, cleanability, and durability with excellent chemical resistance properties
• End Cap Features: End cap design includes a 4-inch ID and an open (with molded gasket) configuration for easy cartridge removal and replacement; Durable plastic resists damage from chemicals; OD: 8-1/2 inches, Length: 17-3/8 inches
• Pool and Spa Fitment: Compatible with Hayward Pool Products and Cal Spas