Dundas Jafine EXWTZW Bathroom Fan Vent Kit with 4" x 5' Vinyl Duct, Wall Style, 4 inch The Dundas Jafine wall style bathroom Fan vent kit is ideal for bathroom Fan venting that require a wall style installation This kit includes a 4 inch louvered exhaust hood, 4 inch x 5' vinyl duct, a 3 inch - 4 inch foam adapter and 2 plastic adjustable clamps For wall style installations