11 1/4x11 1/4x1 Exact MERV 7 AC Furnace Filters 6 Pack Tents / Indoor Greenhouses 4% (Mg) + micronutrients

4% (Mg) + micronutrients

This is one of the most powerful and potent All-in-One plant growth enhancers on the market today

and the side walls encompass each layer so there’s no danger of dropping or losing any of your yield

For growers concerned about what’s going on in their garden

413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis

11 1/4x11 1/4x1 Exact MERV 7 AC Furnace Filters 6 Pack Tents / Indoor Greenhouses 4% (Mg) + micronutrientsNordic Pure MERV 7 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 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters