20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 8 Pleated Plus Carbon 4 Pack Hydro Systems auto shutdown for extreme temperature

auto shutdown for extreme temperature situations

Customized for gardening and hydroponics

Working Environment:             Temperature 32-122°F

These products have all of the essential macro and micro growth nutrients needed for excellent plant growth and bloom phases

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 8 Pleated Plus Carbon 4 Pack Hydro Systems auto shutdown for extreme temperatureImportant 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,