Sentinel Filter - "08" & Prior - Arctic
$39.99

Not all hot tub filters are the same! Using an inferior filter wastes time and money. You do not have to waste time cleaning foul-looking filters and you do not need to waste money buying filter cleaning chemicals. New...

25 Sq Ft' Filter C-4326
$37.99

FITS: C4326 UNICEL C-4625 SPA FILTER FC237 PLEATCO PRB25 Single Pack Cartridge 25 sq ft Bottom Opening: 2 - 1/8" -Top Opening: 2 - 1/8" -Outside Diameter: 4 - 15/16" (Also replaces 5") -Length: 13 - 5/16" -REMAY...

50 Sq Ft' Filter C-4950
$59.99

This filter type has holes/openings on both ends.  “Easy install, cleans great!”  All quality cartridge filters use white, spunbonded 100% polyester Reemay brand filter media or paper.  Reemay is...

Arctic Rescue Bag
$12.99

This filter works with any Arctic Spa equiped with the Active Skim Filtration.  It is standard on 2011 Arctic Spas and newer. 

Bag of Filters / Buy 4, get 1 Free ( Threaded Sentinel Filter)
$159.99

Threaded Filter for Arctic Spas Built between 2009 and 2019 Not all hot tub filters are the same! Using an inferior filter wastes time and money. You do not have to waste time cleaning foul-looking filters and you do not...

Bag of Filters / Buy 4, get 1 Free (Drop-in Sentinel Filter(pre-2009)) Arctic
$159.99

Drop in Style(non threaded) Replacement Disposable Filter Cartridge  Not all hot tub filters are the same! Using an inferior filter wastes time and money. You do not have to waste time cleaning foul-looking filters...

Pleated Filter Short (Threaded)
$19.99

Pleated Filter Short (Threaded)

Pleated Threaded Filter (For Arctic Spas 2009-2019)
$59.99

This Filter can replaced the Arctic Sentinel Filter With Handle. Suggested to use if you are on Well Water, or prefer to clean your filters.

Progressive Filter Cartridge Single
$74.99

Progressive Filter Cartridge - Individual Progressive Filter Cartridge for Arctic Spa Custom Series Hot Tubs with serial numbers beginning with 20XXXXX.  For use with Custom Series Arctic Spas built in 2020 &...

Sentinel Filter - Short - No Handle
$19.99

Sentinel Short Filter - No Handle - For use with Marmot and Mesa Models

Sentinel Filter With Handle - 2009 & up
$39.99

Not all hot tub filters are the same! Using an inferior filter wastes time and money. You do not have to waste time cleaning foul-looking filters and you do not need to waste money buying filter cleaning chemicals. New...

Silver Sentinal Short Threaded
$19.99

Silver Sentinal Short Threaded

Silver Sentinel- Otter Filter
$44.99

Silver Sentinel made for the 2 person "Otter model " of Arctic Spa PRT-900015

Special - 3 x Silver Sentinel Drop-In Filter(Pre-2009 Arctics)
$99.99

3 Filter Special These are a maintenance free and "recyclable" filter that are used in spas built prior to 2009. You should order these filters if you have an Arctic or Coyote spa with a"floating weir" type filter in...

Special - 3 x Silver Sentinel Threaded Filter(2009-2019)
$99.99

3 Filter Special.  These are a maintenance free and "recyclable" filter that are used in Arctic Spas spas built in 2009 to 2019. You should order these filters if you have an Arctic or Coyote spa with a filter...