Best regarded for it high concentration that offer the lowest cost per batch in the industry Reduces Shipping costs by 75%, Store more on the vehicle in less space ProTool Sticky is used with sodium hypochlorite (SH) and water to allow a better spreading of the solution and a longer dwell time when cleaning mold, dirt, and mildew stains Use 10 oz. to create a 50 gallon batch This product is lemon scented and is safe on copper