Amazon offers the 3M Utility Duct Tape in Silver, model no. 2929, for $5.77. Order via Subscribe & Save to cut the price to $5.48 and bag free shipping. That's $2 under list and the lowest total price we could find. It measures 1.88" x 50 yards.

Be sure to cancel Subscribe & Save after your order ships to avoid being billed for subsequent shipments.