R-6 DucTitea® Insulators for patented #602 DucTitea® Register Boxes. A true R-6 insulator that provides a time and labor saving way to insulate register boxes. The R-6 EPS Insulator is designed to slip onto the #602 DucTitea® Register boot, thereby providing a true R-6 insulator. R-6 DucTitea® features:

• Expanded Polystyrene (EPS) R-6 Register Box Insulator
• Made from 100% Recyclable EPS
• Reduces Installation Time and Labor Cost
• NO Exposed fibers in the Air Stream
• NO Additional Taping or Sealing Needed
• Closed Cell Vapor Barrier
• Simple "Slide On" Installation
• UL Classified
• ICC-ES PMG Report 1029 available online at http://www.icc-es-pmg.org
• Also known as a boot or a can.