Using the Bobrick B - 527 waste door is simple. First, make sure your countertop is between 3/4' and 1 - 1/2' (19 to 38mm) thick and there's at least 4 - 1/2' (115mm) of space below the mounting surface. Then, mount the door on the counter as per the provided instructions. The self - closing feature means you don't have to worry about leaving the door open. When it comes to maintenance, use a mild cleaner to wipe the satin - finish stainless steel surface regularly to keep it looking new. Avoid using abrasive materials that could scratch the finish. And remember, this product doesn't come with a waste bin or the housing below the counter, so you'll need to get those separately.