15x24x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Odor Control 3 microns— similar to the

3 microns— similar to the protection of an N95 respirator

Root Pouch Synthetic Blend Multi Use Fabric Container

This simple to use product contains multiple vitamins and macronutrients that will show you rather than tell you

Maintains results after multiple growth cycles

With the Grow Hub+

15x24x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Odor Control 3 microns— similar to theNordic 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