A word of caution on the Tobeco Oddy clone: The positive post is too short. The parts for the all steel version don't necessarily interchange with the plastic tank version. Just had to say something because it took me over $100 to find out this information.
You can still get them to work, but I recommend a Terminator over the Tobeco. Ultimately my tobeco's have turned into spare parts for my Terminator (namely the ceramics & the lock-rings).