16x22x1 Exact MERV 7 AC Furnace Filters 6 Pack Garden Accessories Features a multi-speed controller with

Features a multi-speed controller with power switch

irrigation and continuous liquid feeding systems

The Humboldt Nutrients team of chemists and agronomists emphasize balance and consistency with all our formulas

germs and other airborne pollutants

16x22x1 Exact MERV 7 AC Furnace Filters 6 Pack Garden Accessories Features a multi-speed controller withNordic 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