20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 2 Pack pumps-&-irrigation 10x higher concentration than the

10x higher concentration than the leading competitor

No more mixing your medium on the floor and making a mess

Peach Twig Borer (Anarsia lineatella Zeller)

use Debug ON with pyrethrins

Wall Mount for up to 24" fan

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 2 Pack pumps-&-irrigation 10x higher concentration than theImportant 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,