Progressive Filter Cartridge (Hybrid)

Arctic Spas filter cartridge for Custom Series models like Fox, Cub, Yukon, Summit, Kodiak, Klondiker, Summit XL, Ocean, Columbia. This style is the same as the Combo but without the Perlite rock media. Should last 4 months, maybe 6. This is the newest filter for Custom series spas, it is the best value - it lasts the longest and costs less than the combo.