15x30_3/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_nextlight Do not reapply within 3

Do not reapply within 3 days

and other contaminates

Batch Run Time: 15 minutes

nothing that can be absorbed by your plants

HYDROPONICS AND AQUAPONICS: Ideal inert substrate for hydroponic and aquaponic crops

15x30_3/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_nextlight Do not reapply within 3Nordic 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