I bought some corksport SS brake lines for my T2 on ebay cuz i got them cheap, but i realized i forgot to ask if they were 4pot or single pot fronts. any way to ID them? im looking at the brake lines and they all look pretty similar. help?

 

1 pots have the line from the hard line to the caliper. 4 pots have a shorter front brake line that connects to the 4 pot front hard lines off the caliper.

 

Indeed.
The single piston lines are not only longer but have one male and one female end.
The four-piston lines have two female ends.