This item has been discontinued. We recommend Bio Green Clean - Industrial Equipment Cleaner Concentrate 1 Quart as a replacement. Horti-Clean™ can be used on everything from plastic to stainless steel. Any material with any type of film deposit will be easily removed by just wiping on Horti-Clean™. Works fantastic on dirty plastic trays and reservoirs or any tool in your greenhouse or grow room. You won’t be disappointed. Horti-Clean™ also comes in a convenient spray bottle for easy application.