Scotch 3M Duct Tape , 1.88 in x 20 yd, Jet Black, 1 Roll (920-BLK-C) $1.86 w/Sub n Save + Free Prime Ship – $1.86

This is an all time low price going back to 2012, if you can believe. Note, this is black duct tape and not gray duct tape if you have a color preference on your sub $2 duct tape. Also, it’s Made in USA. ????
https://www.amazon.com/Scotch-Duc…B003YHFZ6A