15x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses or grow fresh herbs right

or grow fresh herbs right in your kitchen all year long

has louvered venting for cool operation

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stimulating dense

Stir and pour a portion (1/7th) of the mixture into a separate bucket or watering can

15x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses or grow fresh herbs rightNordic Pure Custom MERV 8 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