my AC stopped blowing cold last week sometime finally as all the old R12 leaked out over the winter somehow. Anyway, i got the nice R134 adapters and then got the new rubber hose with good brass fittings and a gauge on it for $ 15.00. Do not ..i repeat DO NOT buy the $ 30.00 spray paint can filled with R134 with the cheap aquarium clear hose on it! total Piece of shit! buy two cans of 134A and the good fill hose with gauge and you will be set.