20x20x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack lighting_accessories 2 x 1/2“ End Cap

2 x 1/2“ End Cap

Suitable for use with many different mushroom spores

The Grow Hub+ has a built-in datalogger accessible from our app anytime where you can view historical data in the ‘stats’ section and get insight to how your plants are doing and what is affecting them

Trichogramma brassicae is especially useful for controlling moth populations on cole crops

Nordic Pure 16x28x6 Aprilaire Space-Gard 2400 Replacement Air Filters Part 401 MERV 13 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your workspace or office

20x20x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack lighting_accessories 2 x 1/2“ End CapImportant 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