The Lambro 5 inch galvanized steel roof vent jack is ideal for effectively connecting duct to the vent when no collar is present. This jack has a 10 inch x 10 inch flange and a 4 inch in length collar with crimped end. The flange and collar is constructed of 30 gauge galvanized steel and is suitable for use in most heating, venting and air conditioning applications.
- Used when roof vent has no collar – flush mount
- Galvanized steel construction
- 30 gauge
- 4 inch collar crimped on one ends
- Always seal seams with code approved mastic or sealant
- Installation screws, clamps or tie straps (not included)
(1) 5 inch galvanized steel roof vent jack