Williams 9304 Vent Extension 323055-751 OEM Compatibility: Precision-engineered to fit

OEM Compatibility: Precision-engineered to fit Armstrong brand furnaces and air handlers without modification

reliable performance without the need for field adjustment

minimizing downtime and maintaining system integrity

What is the proper flow direction for this 3-way valve

Common Questions What voltage is required for the Robertshaw 41-803

Williams 9304 Vent Extension 323055-751 OEM Compatibility: Precision-engineered to fitThe Williams 9304 Vent Extension is a critical component for completing through the wall installations of Direct Vent (DV) Wall Furnaces. This 15 inch extension is engineered specifically for the Williams 14038 Series (14,000 BTU models), including compatible Mfr. Nos. 1403821 and 1403822. When standard vent lengths are insufficient due to structural depth, this kit accommodates wall thicknesses from 9 inches up to 15 inches. Constructed from heavy