a/c line seals, where to get em?

[DADillac]

i installed al the a/c stuff back in my camaro last year, and all the freon leaked out in a day. pretty sure its becasue i used regular reen o-rings and later found out you need the special ones that are like a black o-ring built into a metal washer.
anyone know where to get the whole kit, i really dont know waht sizes they would be, napa sells them but i dont know what to get. maybe someone here has a part number or some advice for me?

[9t8z28]

go to the stealership

[99DROPTOPZ]

I need the same fittings you do I'm replacing the lines let me know what they're called or the part# THANKS