28x32x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack CO2 enhances overall plant vigor and

enhances overall plant vigor and yield

20% more light intensity than comparable fluorescent grow lights

fan is powerful enough to air cool several lights connected by ducting and powerful enough to extract odor and heat from your room

under accelerated growing conditions

Suggested Uses: Use to aid in the application of foliar fertilizers

28x32x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack CO2 enhances overall plant vigor andNordic Pure Custom MERV 10 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition