Duct Reducer For Nominal Duct Diameter 14 in Inlet Diameter 14 in Inside Diameter Not Applicable Overall Length 8 1/2 in Product Type Reducer Weight 4.25 lb Material Thickness 0.2 in Maximum Pressure Rating 10 in wc Maximum Temperature Rating 140 Degrees F Material PVC Seal Material Not Applicable Standards ASTM D1784 Cell Class 12454 Shape Straight Gas Appliance Category Not Applicable Outlet Diameter 12 in Overall Height 8 1/2 in Overall Width 14 in End Type Plain