Hey folks, you can checkout what 'Spare Air' is at www.spareair.com
I for one find them EXTREMELY comforting to have aboard our submarines! Oh, I forgot to mention a few months back when I logged on here, that I'm in the Mini-submarine building business <img src="images/graemlins/wink.gif" alt="" /> Yes, REAL submarines, ambient pressure vessels to tthose of you who are engineer types <img src="images/graemlins/wink.gif" alt="" /> check us out at www.caribsub.com, now THAT's a survival vehicle!! If no one can find you how can they steal your survival rations/gear? LOL! In from the woods, working WAY too hard, for too little money! Gene