12x24x4 (3 5/8) Pleated MERV 7 Air Filters 6 Pack books-&-videos These fixtures are great for

These fixtures are great for commercial sized operations all the way down to your starter garden at home

the 120mm fan is IP-44 rated to be highly resistant to liquids and dust particles

Minimum Order to be placed of 2 units

Display: large and easy-to-read LCD screen includes simultaneous temperature reading

This Multi Flow Bubbler comes with 4 color-coordinated interchangeable inserts 2 (YELLOW)

12x24x4 (3 5/8) Pleated MERV 7 Air Filters 6 Pack books-&-videos These fixtures are great forNordic Pure 12x24x4 Pleated Air Filters MERV 7 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured using a heavy duty, moisture resistant beverage