20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 12 Air Filters 2 Pack cloning-and-seed-starting PRO-MIX HP provides a great

PRO-MIX HP provides a great growing environment to growers looking for a significant drainage capacity

Optimum light for healthy plants

but this LED light board use aluminum to make it cool down instead use fans

Thrips (Thysanoptera)

Downy Mildew (Bremia lactucae

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 12 Air Filters 2 Pack cloning-and-seed-starting PRO-MIX HP provides a greatImportant 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,