22x23x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES 10" and 12"

10" and 12"

and precision all the way down to the individual second

For annual weeds

Whether you are a backyard greenhouse hobbyist or a professional commercial plant grower

BOSS is very simple to use: just open the top of the bag and hydrate coir

22x23x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES 10" and 12"Nordic 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