ahhNatural is a 16” x 16” mesh bag you place at the bottom of your hot tub. It contains a proprietary blend of minerals that naturally control bacteria and keep water clear for up to one year. ahhNatural is a people-safe, environmentally friendly alternative to traditional spa chemicals. Perfected after 10 years of research & development, ahhNatural creates naturally pure mineral water for your hot tub. An easy-to-use product based on the same advanced technology commonly used in commercial water purification, the ahhNatural mineral bag is simply placed directly on the floor of your hot tub. Give it an occasional fluff while bathing – and enjoy a soft, soothing, non-toxic experience.