KOHLER premium drain treatment prevents and breaks down organic build-ups and blockages from bath drains, sink drains, toilets and urinals. Features KOHLER | minus Kitchen and bathroom cleaner. Breaks down organic drain build-ups and blockages. Premium formula that is safe for use on bath drains, sink drains, toilets and urinals. 8 fl oz squeeze bottle. May be used on other branded drains, grease traps and septic systems, however testing in an inconspicuous area first is recommended.