11x32_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Misc a combination that will allow

a combination that will allow both the hydroponic and the organic grower to gain experience with the Biobizz organic stimulant range as it provides basic feeding for 1-4 plants

If the temperature varies from your setting

The 17" length helps protect more of your lower legs from exposure to on-the-job contaminants

4-hour REI (Restricted Entry Interval) and can be used in organic and traditional growing

provide improved root aeration and drainage

11x32_1/2x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Misc a combination that will allowNordic 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