Automatic release setting sprays TimeMist® every 15 minutes for quick cleaning and deodorizing of commodes and urinals. Fixtures will be kept clean and pipes clear. Visual LED indicates need for new refill, or low battery. Locking. Operates for two years on two D alkaline batteries (not incl.). Installation kit included. Refills (112306 and 112307) sold separately. Manufacturer's five-year warranty. White. Sold by the each.