17x25x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Lighting Thoroughly mix nutrients or other

Thoroughly mix nutrients or other crop feeding products into clean

Removable grid keeps larger birds from throwing seed on the ground

and safeguarding your hard work from oxidation

Is compatible with most commonly used pesticides (see Use Instructions to review exceptions)

17x25x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Lighting Thoroughly mix nutrients or otherNordic Pure Custom MERV 12 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