6x20x1 MERV 13 AC Furnace Filters 6 Pack growing-accessories Targeted Control of Key Crop

Targeted Control of Key Crop Pests

5" Cloning Rack Tray by Microclone fits into standard chrome and steel racks chosen by growers for their efficient use of space and light

RapidRIZE blocks start off compressed for easy shipping and storage

improving soil fertility and plant nutrition

6x20x1 MERV 13 AC Furnace Filters 6 Pack growing-accessories Targeted Control of Key CropNordic 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