Explore top-quality options in furnace accessories at F.W. Webb. Our collection includes essential components to help you perform maintenance or repairs to an existing furnace, including conversion kits, adapters, bases, and roof jacks. A furnace rack holds the filter in place to help air flow through, protecting against dirt and dust. Made in galvanized steel, these parts can withstand the normal daily operation of the corresponding system. Browse an assortment of accessories from trusted makers Airco, Thermo Pride, and Source 1 to find the right fit for your furnace.