The system is shipped to you in a box which is 18" high x 18" wide x 18" deep. It weighs 22 pounds.

With normal installation, the filter rack is about 16.5" high x 13.5" wide x 5.5" deep (but the height can be reduced in order to fit a particular space).

The standard Amtrol tank (with valve) is about 16" high by 11" in diameter.