20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack plant-care/pest-&-disease-control Our carbon beds feature an

Our carbon beds feature an overall set width to maximize the efficiency of the granular carbon

Bucket-15 Ethanol Extraction Machine (60LBS HOUR)

Even non-municipal water

Nitro Nutrients BASE provides the ideal ratios for maximum vegetative and flower growth

The Plasma Air 100 Series ion generator is a one-tube commercial quality unit intended for installation in air handling units (AHU)

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack plant-care/pest-&-disease-control Our carbon beds feature anImportant 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,