17_1/8x34_7/8x1 MERV 7 AC Furnace Filters 6 Pack Grow Strong Each sachet has the lot

Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened

Produces ozone using ultra violet light bulb

mycorrhizae build a microbial system in and on plant roots which greatly enhance water and nutrient uptake

Effective in soil or hydroponics

24” x 24” x 48” | 2 Plant Capacity | Viewing Window | Accessories: Reflective Floor Tray & Tool Bag

17_1/8x34_7/8x1 MERV 7 AC Furnace Filters 6 Pack Grow Strong Each sachet has the lotNordic 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