Lined Duct

  • Round duct and fittings shown or specified as "lined" to be constructed of outer pressure shell fabricated from new, prime galvanized steel in accordance with the latest ASTM standards.
  • Ductwork to be gauged per the latest edition of SMACNA's HVAC DUCT CONSTRUCTION STANDARDS for the specified pressure class.
  • Duct and fittings to be internally lined with 1-inch "Spiracoustic" rigid duct liner, per manufacturers instructions.


Return to Table of Contents


Contact us at: sales@parmetal.com

3812 N 39th Ave, Phoenix, AZ 85019

602-258-2299 voice ● 602-258-2298 fax