This fuel sender is the one from Cars. Inc. Part number is SU-712 and is new, never installed and in the original box. It has a single 3/8 in. fuel outlet and is correct for '71-72 Skylark/GS 350 without A/C. It can also be used with all other '71-'72 cars if you prefer to leave out the fuel return line. It has the correct 90 ohm fuel gauge sender. $27 shipped to the lower 48 states. Paypal +3%, FTF, USPS money order or personal check subject to clearance are acceptable. (Central Florida)