20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 2 Pack Air Filter This system focuses 20% more

This system focuses 20% more of the light to the target area than our nearest competitor to enhance the performance of the lamp and maximize plant quality and yield

you just plant the seed balls into the mat's various labeled planting sites and press them into their respective spots

Fixed or portable mounting capabilities

orchards and fields but attach to stakes

Clearly marked expiration date and lot number

20x20x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 2 Pack Air Filter This system focuses 20% moreImportant 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