2 inch x 65 Feet (3.9 mil), Insulation Adhesive Metal High Temperature Heavy Duty, Silver Aluminum Foil Tape for Ductwork, Dryer Vent, HVAC: Amazon.com: Industrial & Scientific
Amazon.com: LLPT Aluminum Foil Tape 2 Inches x 108 Feet 5.9 Mil Extra Thick Strong Adhesive HVAC Sealing Hot Cold Air Duct Tape for Pipe Metal Repair (AF208) : Industrial & Scientific