GF Tube Connector for ø80mm Extension Tubes

The Tube Connector joins two 80 mm Combi Rig tubes into one continuous length

. It threads into the internal thread at each tube end, so the join is metal to metal with no sleeve and no gap. Screw it home with the supplied pin and the two tubes behave as one — which is the point, because a Combi Rig column is only as good as its worst joint.