[opendoor]

Originally Posted by Mull

Thanks, I found a equivalent product but .... cheaped out and got the much cheaper one at the 2nd link below. $40 for duct tape seemed too much... lets see if the stuff I buy falls off!

https://www.amazon.ca/Shurtape-Water...4573249&sr=8-1

Stuff I bought, seems good?

https://www.amazon.ca/dp/B00EZ0RKEU?...hk_typ_imgToDp

If you're just doing a few spots on interior metal ducts (not stuff exposed to weather or anything), any foil tape will work really. You can get a 10M roll at Home Depot for $5-10. I wouldn't use the 3M duct tape on HVAC ducts.