What size cap would fit on Goodridge brake line?

[IndyDave]

Gonna rebuild my calipers, so... When I pull my SS Goodridge brake lines off the caliper, I would like to find a cap to quickly put on the open end of the line.

I have been searching, but I can't figure out what kind of cap would work. I'm hoping to find something at a hardware store.

Any thoughts?

[VSZ06]

DOn't worry about it. The fluid will only drip a little as the brakes are not inder pressure. After the caliper change you can bleed off a little to ensure there is no air in the line.

[DJWorm]

The lines are -3AN but the coupler fitting to the caliper is slightly larger.