I had an outside vent cover break off and am trying to replace it. The frame of the old vent cover is stuck on the end of the vent. The frame is loose at the nail on the bottom left as shown in the pic, but super tight around the pipe itself. I’m not sure how to get it off. I have watched a few youtube pics, but the old cover always comes off pretty easily then the new one fits easily around the outside circumference of the pipe.
Has anybody here seen this before, or have tips on how to get the old frame off?