Slime Eater Strips are non-corrosive controller of algae, fungi, and slime in condensate pans and also prevents Legionnaires disease. It’s designed to reduce malodors and maintenance problems associated with stagnant water and moisture. EPA-registered, Slime Eater Strips has the highest-percentage active ingredient, ounce per ounce, than any other micro-biocide of its kind and is Ph 7 neutral. This product is non-corrosive to metallic surfaces and is contained in a mesh wrap to keep the strip from breaking up and clogging drains. Jumbo size for 10-20 tons units. For larger units, use multiple strips.