Advanced Spa Filter Replacement Cartridge 6540-501 Series Filter, Enhanced Water Quality with Superior Filtration, Large Filtration Capacity, Cleans Better and Last up to 18 Months

Keep your hot tub water crystal clear with the Hot Tub Things Advanced Spa Filter Replacement Cartridge 6540-501 Series. Designed for superior filtration, this high-capacity pleated filter captures dirt, debris, and particles down to 10 microns. Built from durable spunbonded polyester, it resists fraying and holds up to repeated cleanings—lasting up to 18 months with proper care. Perfectly compatible with Sundance Select Series spas, this filter fits securely and works with all sanitizing systems, including bromine, chlorine, UV, and SunPurity. Enjoy cleaner water, lower maintenance costs, and reliable performance—every soak.

• ADVANCED FILTRATION FOR CRYSTAL CLEAR WATER - Engineered with premium pleated fabric, this 6540-501 series filter captures sediment, microbes, and particles as small as 10 microns. Enjoy visibly clearer, healthier water while enhancing overall water circulation and spa performance all with a filter that works harder, longer.
• LASTS UP TO 18 MONTHS WITH PROPER CARE - Built to endure repeated cleanings and high-flow environments, this durable filter offers long-term performance lasting up to 18 months. The spunbonded polyester material resists fraying, shedding, and breakdown, saving you money over disposable or brand-name alternatives.
• PERFECT FIT FOR SUNDANCE SELECT SERIES - Designed for an exact fit in Sundance Select Series hot tubs, this replacement cartridge ensures a snug, secure installation without leaks or gaps. A cost-effective alternative to OEM Sundance filters, it delivers the same reliable purification at a fraction of the cost.
• COMPATIBLE WITH ALL SPA SANITIZING SYSTEMS - Whether you use bromine, chlorine, UV, or SunPurity mineral sanitizers, this filter integrates seamlessly with your spa’s water treatment system. Its rugged construction ensures compatibility and stability across a wide range of hot tub water chemistries.
• HIGH CAPACITY & MAXIMUM SURFACE AREA - The pleated design maximizes surface area for increased filtration capacity and better water flow. Ideal for daily residential use, this filter maintains high performance while reducing strain on your spa system, ensuring more time relaxing and less time maintaining.