20x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack X Nutrients bloom Emerald Rootz is carefully formulated

Emerald Rootz is carefully formulated to meet the needs of professional growers

Not only this

CES BLOOM is the second component of the base three part blooming formula

Nordic Pure 16x25x5 Honeywell Replacement MERV 14 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

20x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack X Nutrients bloom Emerald Rootz is carefully formulatedNordic 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