28x28x1 MERV 14 AC Furnace Filters 6 Pack Pots and Containers Earthworm castings are sometimes called

Earthworm castings are sometimes called "gardener's gold" because of the multitude of benefits they provide

reducing the need for replacement over time

The low-temperature defrost function keeps the unit running efficiently even when ambient temps drop

Phosphorous

CMH lamps have a very broad spectrum and is closer to simulating natural daylight than any other form of HID lamp

28x28x1 MERV 14 AC Furnace Filters 6 Pack Pots and Containers Earthworm castings are sometimes calledNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.