15x23x1 Exact MERV 8 AC Furnace Filters 6 Pack Controller 39 x PotPro™ | Platform

39 x PotPro™ | Platform Fitting x T (unit)

blue and white) knobs for precise spectral control

Medium potential acidity formula to help counteract moderately alkaline water

No arch lip allows you to maximize your inner and outer grow/work space

15x23x1 Exact MERV 8 AC Furnace Filters 6 Pack Controller 39 x PotPro™ | PlatformNordic Pure MERV 8 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters