15x30_3/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_nextlight HYDROPONICS AND AQUAPONICS: Ideal inert

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

and growth by improving the rootzone environment

the MERV 11 air filter should be replaced every 6 months

if the animal ingests this product it will experience stomach distress

15x30_3/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_nextlight HYDROPONICS AND AQUAPONICS: Ideal inertNordic 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