I just came from Sam's Club where I found a bargain I just couldn't pass up! A box of (12), 12 ounce cans of 134a refrigerant for less than 38 dollars. That is just over 3 dollars a can. I recently was paying at least 10 dollars for a 12 ounce can. This supply may last me the rest of my life, anybody want to buy a can of 134? :-) Art