Usually it will loosen up over time. On my tent, I installed the mount when it was pretty new. It was tight AF at first, but is fine now.
When I am growing during the hot months I keep all fans below the lights. When Winter comes I need the extra heat being in the basement and move them above the lights. I am guessing that I am not the only one doing this? I have been so crowded this grow I have the tent doors open and fans have been moved outside the tent. This gave me the thought that I should just leave the tent doors open and run an 8 or 10inch carbon filter in the room for odor instead.
Unfortunately, I paid cash.If you bought it with a credit card, you can return it to Lowes and they can look up the card and replace it. Just go to the same store you bought it at
Too bad it's not the 12in.No prob. And oh shit on the link. Maybe this will work for someone else.
Amazon product ASIN B00HXQUUHM