18x36x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack hawthorne • Internal check valve

• Internal check valve

This easy-to-use organic liquid gets the job done without persisting in the environment and will even flush out those insects and mites that like to stay hidden

Dry Mix: Apply 1lb of Soil Activator per 100 lbs of seed or fertilizer

-Measures 12" H by 12 1/8" L

• Automatically controls pH direction up or down

18x36x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack hawthorne • Internal check valveNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.