20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack air-purification Many growers pay for multiple

Many growers pay for multiple products and still don’t see the improvement that Z7 can do all by itself

please ensure that treated seeds are not accessible to birds as ZeroTol is toxic to them

Mitigate HAIs with patented UV-C pathogen killing 99

The ULV nozzle can be placed on a combine harvester

Effective on a wide variety of insects

20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack air-purification Many growers pay for multipleImportant 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