Cleans and penetrates deep inside the fibers of your filter without the use of harsh acids or bleach Proprietary. ultra-concentrated and fast-acting formula cleans thoroughly without altering water chemistry or leaving any residue in your filter Use once a week to clean and restore your cartridge filter and to keep it in optimal performance Up to 15 uses per bottle Directions pour 1 capful of FILTER cleaner in a bucket filled with warm/hot water and soak your spa filter for about 30 minutes then rinse your spa filter with clean water Weight 8 ounces 226g per bottle About ecoone ecoone non-toxic pool and spa products were created for those who desire simple, nature-inspired, environmentally friendly products for their pool and spa Products are simple-to-use and take the guess work out of maintaining pools and spas Since 1997, ecoone has been the leader in developing natural-based pool and spa treatment systems The ecoone system reduces and/or eliminates the majority of your spa care chemical regimen including foam reducers, pH up, pH down, clarifiers, scum digesters, filter cleaning products and chlorine/bromine ecoone features Free of dyes, perfumes and fragrances Free of petroleum based chemicals no VOCs Made using enviro-friendly ingredients Natural ingredients means softer skin and less irritation to eyes Recyclable packaging Made in the USA Pack includes 2 of item shown