So if your car's AC isn't blowing as cold as it used to, this 134 refrigerant might be just what you need. It's designed to replace R134a and works in retrofitted R12 systems too. The cool thing (pun intended) is that it operates at lower pressures than regular refrigerant, which means your compressor doesn't have to work as hard - that translates to colder air and longer compressor life. It's made with environmentally safe hydrocarbons that don't deplete the ozone layer, which is definitely a plus. Compatibility-wise, it works with most AC system components like seals, gaskets, hoses, and compressors - just not with butyl rubber hoses when used with mineral oil. Each can is 6oz and this pack comes with 12 cans, so you've got plenty for your needs or multiple vehicles. It meets all the international standards too, so you know it's legit. Basically, it'll get your AC blowing cold again while being easier on your system and the environment.