Hot tubs, spas and pools can get dirty over time especially the filters where grime and dirt can start to collect. Our Cleenly Hot Tub, Spa & Pool Filter Cleaner is designed to deeply clean your hot tubs filters removing trapped dirt and grime for good. This will remove any unpleasant odours, bacteria and grime and will even make sure that your hot tub works much more efficiently. Deeply Cleans Our Cleenly filter cleaner will successfully remove oils, grease and minerals that start to collect in your filter and if left untreated, will start to create foul odours and cause your hot tub to work less efficiently. Prolong the Life of Your Hot Tub This filter cleaner also helps to prolong the life of your hot tub, spa and filter cleaner.