11_1/2x11_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflective & Greenhouse Films these layers slow a plant’s

these layers slow a plant’s respiration process when in storage

and sequestration of atmospheric nitrogen

The MC720 Kit - Comes with the MC122 pH controller and MP810 dosing pump

Use the original Hi-Brix "Molasses for Plants" for a dynamite finishing formula

11_1/2x11_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Reflective & Greenhouse Films these layers slow a plant’sNordic Pure Custom MERV 7 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