Lambro 377 Range Hood Wall Vent Kit,Lambro,377,264733" /> Can be used with over-the-range- microwaves. Fits 7 inch. round or 3 1/4 inch. x 10 inch. exhaust outlets. Through the wall venting. 7 inch. White Plastic Louvered Vent w/ Tail Pipe 7 inch. Galvanized Adjustable Elbow