15x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Nutrients • Forms strong foundations for

• Forms strong foundations for supporting dense growth of trichomes

Use on any food or non-food crop up to day of harvest

which is toxic to humans

Herbs & Flowers

marine bird fossilized guano

15x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Nutrients • Forms strong foundations forNordic 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