Built for the problem
Designed for Arctic Spas Custom Series tubs where owners want reusable or generic filter options without fighting the original cover setup.
For Arctic Spas Custom Series 2020+
The Spa Filter Adapter Kit v3 replaces the proprietary filter lock-in with a stronger threaded adapter base, four threaded inserts, and a cleaner long-term filter replacement setup.
Designed for Arctic Spas Custom Series tubs where owners want reusable or generic filter options without fighting the original cover setup.
The updated base adapter improves strength and gives each threaded insert a stable lock-in point.
Spend once on the adapter kit, then stop being boxed into high-priced proprietary replacement filters.

What is included
The kit is meant to be boring in the best possible way: install the adapter, thread in the inserts, and use compatible generic filters going forward.
Why owners buy it
For spa owners who change filters regularly, the adapter pays for itself by opening up lower-cost filter options over time.
Compare Cost SavingsOrder the adapter kit and keep your future filter replacement options open.
Buy Spa Filter Adapter Kit v3