20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 8 Pleated Plus Carbon 1 Pack Reflective & Greenhouse Films Brown Kelp's slow growth cycle

Brown Kelp's slow growth cycle packs it with maximum levels of amino acids

Working Environments:                Temperature 32-122°F

making it an incredibly powerful tool for any commercial operation

The concentration of fertilizer in this blend is around 10x more than you will see from most bagged soils on the market and provides your plants with 4-6 weeks of nutrients without the need for additional feeding

helping them grow bigger and faster

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement  MERV 8 Pleated Plus Carbon 1 Pack Reflective & Greenhouse Films Brown Kelp's slow growth cycleImportant 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,