Nashua Tape 2.83 in. x 50 yd. 330X Extreme Weather HVAC Foil Duct Tape 1906077 - The Home Depot
TapePlus Professional Grade Aluminum Foil Tape 2" by 210' (70 Yards) for HVAC, Sealing & Patching Hot & Cold Air Ducts, Metal Repair, and Much More - Walmart.com