The Bullfrog Spas Natural Mineral Cartridge is a simple way to enhance your spa water with the natural benefits of minerals. These long-lasting cartridges are designed to fit inside of the filter cage* on older Bullfrog Spas, or they may be placed inside the Simplicity filter housing or behind a JetPak on newer models. Mineral cartridges are a great option for those who prefer a simple and natural water conditioner.
