Automatic release setting drips TimeMist® every 15 minutes for quick cleaning and deodorizing of commodes and urinals. Keeps fixtures 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. Virtual Janitor Cleaning and Deodorizing Refill (sold separately). Manufacturer's five-year warranty. White. 5w x 3¾d x 9h