got an air bottle today (monday) through the post and looking for the pi stamp on it but i cant find one. it has 'DOT-E 11005' on the side but i cant find anything with PI near it on the bottle. bought from these forums last week from MPH. i will take some piccies of the writing on the bottle and post them up. im guessing its ok as the bottle was bought originally in the UK but i thought i better post up and check. better safe than sorry
http://i171.photobucket.com/albums/u296/evoonline/100_5300.jpg
http://i171.photobucket.com/albums/u296/evoonline/100_5301.jpg
http://i171.photobucket.com/albums/u296/evoonline/100_5300.jpg
http://i171.photobucket.com/albums/u296/evoonline/100_5301.jpg