Copper easy bend 6" long with a female and male end for fitting from the regulator valve on the rear subframe to the hose on the right hand rear. Dry suspension cars only as the hydrolastic uses
HD8. Also used on late front to rear split brakes from the 3 way union on rear to the o/s/r hose.
see 21A47 pre bent steel, though this is only when a regulator is used, not a T