8x18x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack misc so you stay cool as

so you stay cool as you put in a hard day’s work

more healthy dominant branching and/or plant growth

Our microporous

so you stay cool and comfortable in hot environments where heat stress is a concern

5" Cloning Rack Tray by Microclone fits into standard chrome and steel racks chosen by growers for their efficient use of space and light

8x18x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack misc so you stay cool asNordic 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