Rigid Ducts For Nominal Duct Diameter 14 in Inside Diameter 14 in Overall Length 60 in Product Type Rigid Duct Weight 83.8 lb Material Steel Material Thickness 26 ga Maximum Pressure Rating 2 in wc Maximum Temperature Rating 212 Degrees F Shape Straight End Type Crimped/Plain Standards ASTM A653 and A924 SMACNA Seal Class A Seal Material EPDM Co-Polymer Color Black Maximum Airflow Not Applicable Connection Type Press Fit Minimum Temperature Rating -40 Degrees F