Filter Racks - Sheet Metal Fittings

I'm trying to put a new air filter in my furnace and it keeps getting metal furnace filter slot cover I'm trying to put a new air filter in my furnace and it keeps getting stuck on something and ripping the outside cover? What do I do? metalen kast met slot It's a lot easier than trying to fit a sheet metal door and provides a lot tighter seal Great solution to cover opened ac filter slot Works Great

metal slot wallet Two-piece design works with any 1” furnace filter up to 25” long Additional Features: Reusable, easy on easy off design for long-term use Seal measures