Press Mount Circular Grade Rod Level Vial

Compression mount circular rod level for various brands of aluminum survey rods.  Originally made for CST/Berger telescoping aluminum rods, the vial will also fit any brand of 1 7/8 inch wide aluminum rod. The vial inserts on the back of the first rod section and is used to plumb up the rod prior to taking a reading with a laser or optical level. The vial will fit rods that are 1 7/8 inches wide and 7/8 inch deep.