Review on Duck 394468 All Purpose Inches Silver by Terrence Tucker

This is Scotch, not Duck Tape, but this brand remains my favorite. Better value than "original" 3M tape and basically just as good (although it's a bit harder to get a clean break and almost no noticeable difference in adhesion). For all your ducting or general purpose needs, this is a great choice (professional HVAC contractors can choose 3M). Note: Like all tapes, this one leaves a lot of residue, especially on plastic. Gaffers Tape is what you need for a residue-free stick, but it will cost you money!