20x30x1 Pleated MERV 13 Air Filters 6 Pack Growing Accessories Replacement MERV 11 Media Filter

Replacement MERV 11 Media Filter for model A200V1

Fungus Gnats (Bradysia impatiens)

potting mix and many other media types

Test for: Total Nitrogen

Partially fill container with GS-4 Moisture Coco Mix

20x30x1 Pleated MERV 13 Air Filters 6 Pack Growing Accessories Replacement MERV 11 Media FilterNordic Pure MERV 13 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, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200