30x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack light Find your plant variety and

Find your plant variety and rooting powder strength now

can be wiped out with one application

Four side windows with zipper

easy power on-off

The controller also has the ability to simulate sunrise and sunset cycle from 10-60 minutes

30x30x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack light Find your plant variety andNordic 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