Lambro 378 Range Hood Roof Vent Kit (1) - 7" Black Plastic Roof Vent, (1) - 7" Galvanized Adjustable Elbow, (1) - 3 1/4" x 10" Galvanized Transition, (5) - 7" Galvanized Pipe - 17 1/2" Lengths, (1) - Roll of Duct Tape Can be used with over-the-range- microwaves Fits 7" round or 3 1/4" x 10" exhaust outlets Through the roof venting Range Hood Roof Vent Kit