FROG @Ease Mineral Cartridge + SmartChlor Cartridges for Marquis, Caldera, Artesian & Hot Springs Spas - Hot Tub Sanitizer, CYA Free, for up to 600 Gallons is a Pools Hot Tubs & Supplies option for everyday use, business supply needs, resale shelves, or household stocking. Review product size, pack count, and shipping details before checkout.