R134a A/C o-rings

[ian332isport]

r12 and 134a both work at the same pressures

I'm pretty sure that's not the case.

[sam325is]

Think im going to in the direction that dameaon pointed me in, as it all seemed logical.

[dano0]

ok not esactly the same but nearly as 134 a works a bit higher pressure about 20 psi but thisis not high enough tomake any diffrence as you can retro fit any car by changing the oil ,ports and gas just add 20% less 134a we have been doing this for about 8 years with no problems but what im trying to say is you dont need a new pressure switch just because your changing the gas the change in pressures are minimal

[gazza]

with respect to the retro fit kit when i bought mine it only had 3 o rings in it only enough to replace the dryer bottle and new switch .....i then had to buy all the other o rings seperately