Turn every soak into pure escape with the Clarus® CPF-3960 Replacement Filter Cartridge. Engineered to trap dirt, debris, and fine particles, it features antimicrobial-treated media that helps inhibit the growth of bacteria on the filter media. The result: powerful, consistent filtration in a washable, reusable design that keeps maintenance quick and stress-free. Spend less time on maintenance and more time unwinding—because murky spa water isn’t an option.

• Feel Good, Soak Better:: Antimicrobial protection helps inhibit the growth of bacteria and mold on the filter media, so you can relax without second-guessing what's in your water.
• Where Clarity Meets Calm:: Dirt-locking filtration catches even the tiniest particles to keep your spa clean, balanced, and completely soak-worthy.
• Smoother Flow, Less Stress:: DiamondCore™ Technology improves circulation and cuts down on clogs for a more effortless spa experience.
• Rinse, Reset, Repeat:: Reusable design rinses clean fast, saving you money on frequent filter replacements.
• Built to Last (Like Your Me-Time):: Reinforced construction resists cracks, collapse, and wear, even under pressure.
• Protect What Powers Your Peace:: Shields your pump and spa system from contaminants to extend performance and reduce strain.
• Peace of Mind:: Certified to NSF/ANSI 50 standards for safe, reliable pool & spa filtration.