16_1/2x21_5/8x1 Exact MERV 14 AC Furnace Filters 6 Pack Nutriants Listed diameter is measured from

Listed diameter is measured from the inside of the bottom of the saucer

Orthrus MK-V Bi-Directional Closed Loop Extractor

The EnviroKlenz Air Cartridge has been independently tested and proven to remove 99

Use it for propagating cuttings and as a transplanting drench for newly potted plants

Efficient parasites

16_1/2x21_5/8x1 Exact MERV 14 AC Furnace Filters 6 Pack Nutriants Listed diameter is measured fromNordic 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.