S.U.R.& R. offers a variety of replacement tube nuts and unions to eliminate use of older corroded fittings. Part number PN38 is a GM specific tube nut. Product Features:Having the right tube nut on hand eliminates the time and hassle of trying to source the proper fittingAvoid using expensive adapters Works with S.U.R.& R.'s alloy tubing as well as stainless, coated and steel tubing
