Act fast and order the DuraVent 7" DuraTech Adjustable Roof Flashing (7/12 - 12/12) - M&G DuraVent 9550 7DT-F12 via PlumbersStock.com - order now to get the discount price of See Price in Cart. DuraVent 7" DuraTech Adjustable Roof Flashing (7/12 - 12/12) - M&G DuraVent 9550 7DT-F12