28x28x1 MERV 12 AC Furnace Filters 6 Pack trays • Avoid odors from compost

• Avoid odors from compost

independently controlled

A high phosphorous mix of bat and seabird guano plus earthworm castings

Mix 5 LBS of substrate for every 3 LBS of colonized grain

Volume: 2 Gallon

28x28x1 MERV 12 AC Furnace Filters 6 Pack trays • Avoid odors from compostNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different