ADM Extra 3.5 lb. Counterweight
ADM 3.5 lb. Counterweight with Threaded Center
If you need to add extra weight to your ADM OTA counterweight system, this 3.5 pound counterweight will do the trick. The center of this counterweight is machined to screw onto the threaded rods of ADM counterweight kits. It has a diameter of 4" and is 1" thick, and is professionally powder-coated for beauty and durability.
If an extra 3.5 pounds is a bit too much for your system, ADM also offers a 1.75 pound counterweight of the same diameter, but half as thick (.5").