17x25x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_nextlight The oxygen rich solution helps

The oxygen rich solution helps build healthy root systems faster and more efficiently than soil which results in superior plant growth and higher yields in your overall production

Contains indole-3-butyric acid (IBA)

Root Pots are designed to allow roots to breathe

(P) Phosphorus

extruded aluminum alloy chassis with integrated heatsink for longevity and passive

17x25x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_nextlight The oxygen rich solution helpsNordic 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