8_7/8x19_1/8x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack harvest-solutions expanded volcanic rock

expanded volcanic rock

and provides up to 48% additional high quality light

Easily control run times and power output with one simple unit

get Speed Bully

efficient photosynthesis and rapid transportation of carbohydrates and starches throughout a plants vascular system

8_7/8x19_1/8x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack harvest-solutions expanded volcanic rockNordic Pure Custom MERV 10 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