Frost King Foam and Foil Duct Insulation. A simple, one-step way to insulate both heating and air conditioning ducts. 1 ft. x 1/8″ x 15 ft.

• • Simple to install
• • One-step way to insulate both heating and air-conditioning ducts
• • Conforms to sharp corners
• • it also dampens sound and vibrations
• •