20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 2 Pack meters-&-solutions As Royal Gold’s first product

As Royal Gold’s first product to include peat moss

It’s that easy

plant-based fatty acid salts

Outside Dimensions: 35 3/4" x 35 3/4" x 3 3/4"

It will also breakdown salts into bio available nutrients

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 2 Pack meters-&-solutions As Royal Gold’s first productImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 7 8 and 5 1 4 inch depth filters,