Ductless Flue Extension In White For Ew48 Series Chimney Range Hood Optional Flue Extension In White For Use With Broan? Elite Ew48 Series. Flue Can Be Used In Ducted Or Non-Ducted Applicatons To Suit Your Needs. The Optional Flue Extension Accomodates 9' To 10' Ceiling Heights. Note: Image Shows Stainless Steel Model. This Model Is Available In White And Matches The White Of The Ew48 Series Hood .