Since 1981, the Sun-Mar Excel non-electric self-contained composting toilet has been a reliable and easy-to-use waste recycler for those living off the grid or for those who just want to live a green existence. This high-capacity waterless commode utilizes a patented Bio-drum that hastens odorless decomposition without a fan, heater, water supply or sewer connection. It includes a 4 in. diameter rear vent which, with extra piping, can be extended up through the roof to direct odors outside.
Listed capacities refer to the amount of people, on average, using the unit per day. Do not pick a unit that is below your capacity.
2 adults or families of 3
5 adults or families of 7
1.4 (12 volt optional)
1" Drain, Required Use
Product Weight/Shipping Weight
Shipping Carton Dimensions (W by L by H)
28" by 35 1/2" by 36"
Depth Required to Remove Drawer
Vent outlet center distance from right side
Height to center of vent
31 1/2" by 22 1/2" by 33 1/2"