How to Cut a Collar Into Duct Board

[@ryanlabree6413]

Because this is rocket science

[@jorgenorman8715]

How do you take out a collar and patch it

[@happyamerica1240]

Really Helps Thank you 🙏

[@blackericdenice]

I thought I had to make that box.

[@ps3boss98]

Why are you only using tape and not mastic? Tape won’t do the job alone

[@DoctorWho369]

no more fiberglass/asbestos