This replacement air conditioner shroud fits select Intertherm and Nordyne air conditioners. Overall shroud dimension is 42.25" x 27.25" 7.75" high. It has 9 holes around the outside for mounting it to the bottom potion of the chassis (not included). This is a replacement for model numbers 668782, 687000, 687001, 687003, 668706, 668707-0 & 452840. The model numbers should be found on the top of the interior chasis.