The Q9-90-DEG-DISP-ADAPT is an adapter that is easily installed to rotate the Q9 display 90 degrees for meters that are installed in vertical pipes. The Q9 is the new version of the 09. It was released in 2020. These displays are used on G2, TM, and A1 meters. If you are unsure whether your meter has the Q9 or 09, check the meter part number. If there is a Q9 or 09 in it, that is the type of computer display you have. If you are still unsure, call us at 1-855-871-6091.