[1retired06]

Model number is hard to read, believe WM1132518HZ, The venting internal to the M/W can be set for straight out or up out ventilation setups. However, what you need to do, is take the measurements of your existing M/W, very carefully, and do a search online for MWs with those same measurements. Different MW units differ. We were able to use the same mounting rail already installed at the wall, so that made it easy. Set the MW at an angle on the bottom rail, and lift forward, top is secured by bolts thru the cabinet on top of the MW. Lowes, Home Depot, Whirlpool.com have plenty of choices to choose from.