They are 12 1/2" x 3 7/8" and will accept one of our long grab handles (275-23 or 275-24) and two of our vent collars (275-15).
They are 12 1/2" x 3 7/8" and will accept one of our long grab handles (275-23 or 275-24) and two of our vent collars (275-15).