Spare toilet box. Does not come with seat or hardware.
Designed and tested in our own shop.... well, not tested in the shop,
but well tested. The box seals with a large screw on lid on the top
side. The poly boxes don't retain odors, and the compact size of the box
makes it easy to rig in most boats. The wide base makes for a stable
area of operations. A 3 in. drain plug and a 3/4 in. hose fitting are
welded into the box. The system comes with plastic seat and all flush
out fittings, hose and plugs that are needed. 50 user waste days.