DuraVent FasNSeal De Dietrich GT Series Appliance Adapter: connects a FasNSeal vent to listed GT Series boilers
The DuraVent FasNSeal De Dietrich GT Series Appliance Adapter is the connector between a FasNSeal vent and a De Dietrich GT Series boiler’s exhaust outlet. It is DuraVent’s Universal Appliance Adapter, offered here in the four sizes listed for these boilers. 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. Each FasNSeal part has a gasket and a locking band built into its wider end to seal and hold the connection.
Choose 7 inch for GT334A to GT336A, 8 inch for GT337A to GT339A, 10 inch for GT430 8A to 10A, or 12 inch for GT430 11A to 14A. Match your boiler model before choosing the size on this page. An experienced professional handles the installation, and DuraVent calls for a qualified inspector to check the complete vent each year. Looking for the same adapter in another size? See the DuraVent FasNSeal Universal Appliance Adapter. The DuraVent FasNSeal De Dietrich GT Series Appliance Adapter 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:








































