what sizes to cap off A/C fittings at firewall??

[sean350z]

Anyone have a clue on the sizes of the threaded fittings on the firewall for the two A/C connections on an S14??

I'm looking to buy some brass or plastic caps but not sure of the sizes.

thanks

[smithers584]

why would you cap them?

[sean350z]

took off the A/C...don't want dirt to get in the fittings in case i install it at a later time/resale

[95zilvia]

use like, masking tape.