10x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs allowing for fast growth and

allowing for fast growth and strong

and can be used in fertigation injector systems

Will not clog stomata as oil-based sprays may do

The fans can also be set to run continuously or be turned off

are one of the most effective agents for loosening and aerating the soil

10x36x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Grow System/ Trays/ Reservoirs allowing for fast growth andNordic Pure Custom MERV 7 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