Spa Frog Serene Mineral Cartridge Refill For Floating System Hot Tubs 6 PACK. Refill for use in either the spa frog floating system, or for users of the spa frog inline system. Use with companion frog bromine cartridge. Spa frog mineral cartridge. Mfg : KING TECHNOLOGY INC. Product Line : Non – Chemical Sanitizer. Obsolete : This product is not obsolete. We will respond to you within 24 hours and do our best to help you out! This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs”. The seller is “luxspi” and is located in this country: US. This item can be shipped to United States.
