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Excellent breathability and drainage to keep roots cool
Most rockwool is naturally alkaline
The Plantmax 1
Use 1-2 tablespoons for every foot of plant height
It can be used in soil or in hydroponic systems and alongside other nutrient products
8x18x1 Exact MERV 7 AC Furnace Filters 6 Pack spl_allstate Excellent breathability and drainage toNordic 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