I ordered this but couldn't cancel as I got another sooner. Selling at my cost. Vent-a-Hood model VP 541HP roof vent / jack It is high profile roof vent (roof jack) for any kitchen ventilation hood with an 8" diameter duct. Designed for roofs steeper than 4 in 12. Constructed of stainless steel so it wont rust and has a magnet to keep the damper closed. The unit is brand new in box, unopened. Pictures are of the other one I bought It'll take you up to two months to get this if ordered through the distributor .