Hot Tub Filters

Please Note: This is the disposable, spun-polymer filter. It is “doughnut” shaped. 5″ tall, 7.75″ in diameter. Most Sundance Spas hot tubs that use this filter will also need the pleated filter cartridge HTT-6540-501 or comparable Sundance Filter.

• SINGLE PACK | Save money and resources. lasts up to 6 months
• FULLY COMPATIBLE | The replacement filter fits perfectly in Sundance Select series hot tubs, so you can purify your residential hot tub while saving money over name-brand Sundance filters
• SUPERIOR FILTRATION | The blown polymer strands in this filter nest tightly to screen out even microscopic-sized particles
• SUITABLE FOR ALL CHEMISTRIES | The filter is compatible with bromine, chlorine, UV-ray, and the SunPurity mineral sanitizer (sold separately)

• FULLY COMPATIBLE | The replacement filter fits perfectly in most modern J-300 series hot tubs, so you can purify your residential hot tub while saving money over name-brand Jacuzzi filters
• SUPERIOR FILTRATION | The pleated filtration fabric exposes the maximum surface area (60 sq ft) to your water flow
• SUITABLE FOR ALL CHEMISTRIES | The filter is compatible with bromine, chlorine, UV-ray, and the ProClear mineral sanitizer (sold separately)

• Replacement for Sundance Spas Microclean Inner Filter 6473-164
• Inner Filter is used on Sundance Spas 880 Series and 850 Series
• Inner Filter used with 6473-165 Outer Filter
• 100% compatible with Sundance Spa Parts and Filters
• Height: 18.74″ Diameter: 5.63″

• PURE PEACE OF MIND | Clean water makes for a better, more relaxing soak. 

• LOW MAINTENANCE 
• COMPLETE COMPATABILITY | installs easily and performs just as well as the name brand Sundance Filter.
• ECO- FRIENDLY CHOICE
• FOCUSED ON COMFORT | Hot Tub Things has provided spa services and hot tub supplies for over 20 years. Let us help you take care of your backyard oasis.

• Newest filter addition to our Hot Tub Things family!
• Comparable to the Wellspring 281 filter for Bullfrog Spas®
• 2 Premium high-quality filter cartridges | Easy to Clean Microban Pleats | Powerful & Efficient Performance
• Includes two 281 filters per package
• STIL Series Spas 2018 – Present
• STIL Series Spas from | 2015-2017 | you will need to purchase a Filter Cage Core Assembly (part #10-00417)
• Compatible to Wellspring 281, Wellspring 18 Coreless, Pleatco PBF17, PBF17-M

Re placement filter for Nordic branded spas – Bella MS model (after 2017).

• Manufacturer: Waterway Plastics
  
• Waterway Plastics Item Number: 817-3640
• Nordic Item Number: 817-3640

• Nordic Spas replacement filters by Unicel
• Industry’s most complete line of replacement filter elements
• Manufacturer part number 4CH-935
• Bottom End Cap 2″ (inside diameter) female SAE thread 0″ id