DuraVent FasNSeal Insulated Wall Pass Through: an insulated sleeve where the vent crosses a wall
The DuraVent FasNSeal Insulated Wall Pass Through is an insulated sleeve that carries the vent through a wall. It fits between standard wall studs. It uses the same wall opening and fitting method as a wall thimble, another type of wall sleeve. This part does not finish the vent outside. Choose a 3 to 16 inch size. The 3 to 5 inch sizes fit walls 4 1/4 to 8 1/2 inches thick. The 6 to 16 inch sizes fit walls 5 3/4 to 11 1/2 inches thick.
FasNSeal is DuraVent’s stainless steel vent for high efficiency gas boilers, furnaces, and water heaters, built to carry pressurized exhaust and its acidic condensate outside. The appliance must call for a special gas vent and use natural gas or propane. The pipe needs separate support, including hangers every 6 feet along horizontal runs. Looking for a sleeve with an adjustable vent section? See the DuraVent FasNSeal Insulated Wall Thimble with Adjustable Vent Length, an outside wall sleeve. The DuraVent FasNSeal Insulated Wall Pass Through ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








Commercial projects may require custom parts and unique system designs. Duravent offers complete project assistance:








































