🔧 Seal it like a pro with DuckBrand! Easy to tear design for quick application—no scissors needed! UL181A-P listed for peace of mind with flame spread and smoke development ratings. Engineered for both rigid and flexible ductwork, ensuring a perfect fit every time. Withstands extreme temperatures from -20°F to 200°F, keeping your ducts sealed year-round. Versatile for indoor and outdoor use, tackling any sealing challenge. Flame rated Temp range -20°F to 200°F Heavy-duty The DuckBrand HVAC Duct Sealing Tape is a heavy-duty, versatile solution for sealing both rigid and flexible ductwork. Measuring 1.88 inches by 30 yards, this tape is easy to tear, UL181A-P listed, and can withstand temperatures ranging from -20°F to 200°F. Ideal for both indoor and outdoor applications, it ensures safety with its flame spread and smoke development ratings.