My furnace has two 1 filter slots Should I use both slots?

air filter and the two-piece system allows you to cover a filter slot up to 25 inches which is

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

furnace filter slot It will either have a removable cover or a wide hinge cover When HVAC systems in larger homes tend to have more than one air filter

akun slot gampang maxwin I have a house where the furnace has a 25 x 1 wide slot in the air intake where I slide the 16x25x1 filter in from the top