20x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter 1 Pack Water Filtration Uses acrylic adhesive to seal

Uses acrylic adhesive to seal gaps in ducting and prevent moisture and emissions from seeping in or out

5’ vegetative coverage at 24” and 4’x2

where it will establish itself and grow

Less competition for nutrients in the soil allows plants to develop healthier root systems with increased biomass

and diluents (fillers / diluting agents) like Propylene Glycol (PG) are certainly one of them

20x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filter 1 Pack Water Filtration Uses acrylic adhesive to sealImportant 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. If you are replacing a 4 3 8 depth 20x20x4 filter