🌀 Four Seasons 26743 O-Ring & Gasket Air Conditioning System Seal Kit: Ultimate Solution for A/C System Sealing Review

It had all the gaskets I needed to restore the air conditioning in my camper van. The rubber was of good quality. I vacuumed the system and left it overnight. The vacuum was held for more than 8 hours. No leaks. That's all you can ask.

For my 93 C3500 they mostly worked but the gaskets that go from the line to the back of the R4 compressor , did not fit . right size. You need red and yellow, and they are different thicknesses, which you can buy separately. This kit works well for a general set for line o-rings, batteries and the like, so it's decent

1996 Chevy Tahoe, replaced A/C compressor with known leak. When replacing the battery/drier, the closest o-rings looked a little thicker, but they fit together and I figured that would provide a better seal. Crimping spent the night, the vacuum is not quite right. The 2nd vacuum showed a change. No leak could be found so I reloaded with paint. The leak was worse/faster than before the compressor was replaced. Opening the evaporator and condenser, also with a dipstick, no leak could be found…