Active Air Wall Mount Oscillating Fans PLANT CARE ID 4 ft x 4

ID 4 ft x 4 ft:  OD 53" x 53" x 7"

It contains vitamins

No replacement cartridges are necessary

both inside and out

you will be able to continuously monitor pH

Active Air Wall Mount Oscillating Fans PLANT CARE ID 4 ft x 4Active Air Wall Mount Oscillating Fans are easy to mount with 3 speed settings and oscillate 90 degrees to give you ultimate control of air flow in your area. They have two pull chains that allow for easy adjustments of speed or direction, and operates very quietly. Features Prevents stratification of grow room air Smooth and quiet operation 90 degree oscillating action Three speed settings Two pull chains to operate speed and oscillation Easy wall