Plenum-rated duct markers from Marking Services are metalized self-adhesive duct markers tested to meet the requirements of E-84-03 “Standard Test Method" for surface burning characteristics of building materials.
• Available with black text on metallic grey background
• Designed for use in plenums to help prevent the spread of smoke and gases in the event of a fire
• Available in stock sizes 2 ¼" x 13" or 4" x 24", custom sizes available upon request
• Duct markers are also available in non-plenum rated material