Using these replacement bottles is simple. First, make sure you have the compatible Amenity Station and pump. Unscrew the old bottle from the station and replace it with one of these new white bottles. The custom view window helps your staff know when to change the bottle. Keep in mind that the pump and the Amenity Station are sold separately, so you'll need to get them if you don't have them already. For maintenance, clean the stainless - steel pump occasionally to ensure it dispenses the correct 2 ccs of product. And always store the bottles in a cool, dry place to keep the product inside fresh.