One from the firewall to the compressor (hard and rubber), one from the compressor to the condeser (hard with the last couple of inches rubber), one from the condenser to the reciever/dryer (hard), one from the reciever/dryer to the fire wall (hard), and there is a small tube by the fire wall connetions that hooks to both lines. I think I got then all. Im pretty sure that is the right order but you may want to check a manual. I just sold a complete set on ebay a couple of months ago. I upgraded to a sanden compressor. If you are running a sanden compressor you cann't run any of the original stuff in the engine compartment. Bouchens performance sells the complete under hood set for about $350-375. That is everything ecept the compressor and mounting bracket. It only uses about 3-4 horse to run and runs 134a.