In a message dated 99-12-08 10:17:23 EST, you write:

<< Thetfords are about $100 at Sears >>
Cheaper at Wal-Mart for a basic model. I'd also like to add that if you are
traveling with children, this accessory is a must. To/from BBTT in October,
my six yr old daughter let me know when she needed to make a potty stop just
minutes before it reached critical stage. Thank God for the porta-potti. Just
pull off any exit, no need to worry about what facilities there are OR how
clean they are.    Jeff S.