'68 & Later Dash Knob for Glovebox & Fresh Air, Square Hole

This dash knob is the same for the glovebox or the fresh air vents on late model bugs.  If used for fresh air, pop out the center cap and use the painted cap with the arrows on it. Be sure to check your knob first, as some knobs have round threaded inserts and some are square.  This is the one for the square hole.