25x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Nutrients and Supplements Specifically sized to separate leaf

Specifically sized to separate leaf from flower

these durable poly covers also resist shifting temperatures

CO2: 300-2500PPM

Several strains that can digest typically indigestible plant residue that can be put back into the rhizosphere to support the growth of the microbial community

which lures them from their hiding places

25x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Nutrients and Supplements Specifically sized to separate leafNordic 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