Which Oring for Ac condensor hoses

[noid]

I will be replacing the AC condenser in my e30 and want to make sure I have the correct o-rings on hand for the two hoses that tie into the condenser.

Anyone know?


The below realoem breakdown for item 21 isn't specific enough:

http://www.realoem.com/bmw/enUS/showparts?id=1113-USA-01-1987-E30-BMW-325i&diagId=64_0742

[Das Delfin]

I feel like this has been asked before. The answer I gave before was order all the o-rings and you should be set. They're like 50 cents each

Green ones are compatible with both refrigerants

[jeffnhiscars]

Seems to me my pf condensor came with o rings. You can also get a 134 conversion seal kit for maybe $10-15 or a bulk supply from HF for $10