THEY ARE ALUMINUM CAP AND PLUG.
XRP -16 CAPS AND PLUGS FOR AN FITTINGS, NASCAR,LATE MODEL,TRUCKS
XRP -8 CAPS AND PLUGS FOR AN FITTINGS, NASCAR,LATE MODEL,TRUCKS
XRP #12 Male Flr to #12 ORB Str Fitting
XRP #12 Str Hose End Black
XRP -12 Male 90 Deg. To -10 O-Ring Boss
GOODRIDGE -12 CAPS ANS PLUGS FOR AN FITTINGS, NASCAR,LATE MODEL,TRUCKS