This composting toilet meets the standards of the National Sanitation Foundation Standard 41 testing. Additional Features * Recessed handle mixes and aerates the compost * 2-inch vent stack attaches the rear * Emergency drain provides extra protection * Depth required to remove drawer: 45 inches * Vent outlet center distance from right side: 7.5 inches * Height to center of vent: 23.5 inches * Requires drilling into your wall or ceiling for venting * Uses standard toilet paper * Includes a 3-5 year limited warranty With its elegant low profile design, the Sun-Mar Compact Electric Waterless Composting Toilet complements any bathroom. The biodrum is made to be small at the front and large in the rear while the handle is recessed into the body of the unit to mix and aerate the compost. Rated for one adult or families of two, a 2-inch vent attaches to the rear while an emergency drain provides extra protection in case of a power outage. This compost toilet comes with a three to five year limited warranty and is certified by the National Sanitation Foundation. Sun-Mar In 1971 Hardy Sunberg developed the world"s first self-contained composting toilet that could be put in a bathroom and would evaporate liquids and compost solids. Over the years he developed a rotating drum with three chambers that would become the foundation for today"s toilets. To this day, Sun-Mar remains the world leader in researching and developing composting toilets. From self-contained units, to central units, and even composting toilets that are specially made for RVs and boats, Sun-Mar has over twenty models to choose from, and each is made to fill a specific need. Sun-Mar ensures that each of their toilets take advantage of a using a drum to create compost through aeration and mixing. All Sun-Mar toilets are also certified by the National Sanitation Foundation. * Low profile design complements any bathroom * Biodrum is small at the front and large in the rear * Plugs into a standards 110V outlet * Rated for 1 adult or families of 2 * Self contained composting toilet * Measures 21.5W x 33D x 28.5H inches