Temple, GA
678-563-0003

#535 Sealed Insulated Box

#535 Sealed Insulated Box

Features: 

  • High performance closed cell polyurethane foam molded around the box for insulation and sealing
  • Patent-pending “Crush Ribs” reliably seal duct to register box without tapes or mastics
  • Patent-pending sealing feature between box and drywall
  • Fold away flanges, allowing for flexible retrofit box replacement
  • Cold temperature installation down to 0°F
  • Internal debris cover protects box interior during rough-in construction
  • Debris cover 2D barcode provides access to installation instructions and product specifications

Test Compliance: 

  • UL 2043 – Fire Test for Heat and Visible Smoke Release
  • ASTM C518 – R8 Thermal Resistance After 90 Day Aging
  • ASTM C411 – Hot Surface Performance of High Temperature Thermal Insulation
  • UL181B – Tensile strength of flex duct connection using listed mechanical connectors
  • Air Leakage at 0.2” H2O pressure using typical installation practices: 535 Box – 0.8 SCFH vs. traditional insulated box @ 70 SCFH 

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Please call customer service at 1-800-520-6593.