Ductwork and Sheet Metal

National Supply is your source for air supply/return air products from industry leading companies such as Don Park-Metal Work, Imperial Manufacturing Group-Registers, Flexible Duct Systems and Flexmaster-Commercial Duct Work. We also stock specialty flexible products, Ductmate-sealers/adhesives, access doors, commercial duct systems and accessories including the ”Clutcher“ metal hanging system.

Imperial Register

Featured Product

Baseboard Register – Painted

  • All-steel construction
  • 1/3″ fins set at 20° angle
  • 7/8″ margin turnback
  • Single-valve volume control damper
  • Durable powder-coat painted finish