The Coleman portable toilet is a high density polyethylene construction. Completely self contained. Can be secured with clamps and latches. All parts are easily replaced. 2.8 gallon capacity/holding tank, 3.2 gallon capacity/fresh water tank.
Bought for use during 3day remodel. Difficult to remove tank to dump. Then I cleaned it and reattached the bottom for storage and it fell off while I was taking it to the basement and the flush pump handle broke off. Now it is truly junk! There have got to be better made toilets