Originally Posted by BenRuss
*UPDATE* I bought a couple of soda pops last night and noticed that the caps looked to have short threads and I instantly thought, man, those look perfect for my growing collection of Perrier bottles (17 750ml bottles) and YES they are perfect. The treads and the caps themselves seem to be a much harder plastic then LHBS PET caps as well, so you can reef them on tight and they don't seem to distort. Here are picks, maybe raid your office or neighbourhood recycling bins...
It would be interesting to know if these caps would survive pasteurization and remain sealed.