The 2020 and newer Arctic Spa Frontier Custom Series is confirmed compatible with Spa Filter Adapter Kit v3. This page is a Kit v3 fitment guide. It does not invent dimensions or specifications for model years that are no longer in the current Arctic Spas brochure.
Is the 2020+ Arctic Spa Frontier compatible with Kit v3?
Yes. The Frontier is on the confirmed 2020+ Custom Series compatibility list for Spa Filter Adapter Kit v3. Kit v3 works with the original Arctic Spa Pro Filter covers and compatible generic replacement filters.
The filter-cover photo is not a second compatibility requirement for a known 2020+ Frontier. Use it when the model year is uncertain, the filter area may have been modified, or you want an additional visual check.
What Kit v3 changes
- Lets the supported filter setup use compatible generic replacement filters.
- Keeps the original Pro Filter covers in use.
- Provides the adapter hardware as a kit. Replacement filters are required and sold separately.
When to check the filter-cover top
If you are unsure whether your Frontier is a 2020 or newer Custom Series tub, compare the top of the original filter covers with the reference photo in the compatibility guide. A matching rounded black insert with a center divider and mirrored inward-pointing angular openings confirms the Kit v3 setup.
Looking for older Frontier dimensions and manual-era information? See the Arctic Spa Frontier older-model specs guide. Older Frontier tubs are not automatically included in the 2020+ compatibility statement.
Order Kit v3 for an Arctic Spa Frontier
If your hot tub is a 2020 or newer Arctic Spa Frontier Custom Series model, order Spa Filter Adapter Kit v3. If the year is uncertain, use the compatibility guide first.
Canadian owners: Review Arctic Spa filter replacement options in Canada for compatible cartridge numbers, USD pricing, shipping, and import guidance.
Arctic Spa Frontier Kit v3 FAQs
Does Spa Filter Adapter Kit v3 fit a 2020+ Arctic Spa Frontier?
Yes. The 2020 and newer Arctic Spa Frontier Custom Series is on the confirmed Kit v3 compatibility list.
Do I need to match the filter-cover photo before ordering?
Not when you know the tub is a supported 2020+ Frontier. The photo is a backup check when the year or setup is uncertain.
Are replacement filters included?
No. Kit v3 includes the adapter hardware. Compatible replacement filters are required and sold separately.
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