18x18x1 Pleated MERV 14 Air Filters 3 Pack Drying Racks Low- 56 DB

Low- 56 DB

Feeds up to 4 months

wait 'til you add DEEP BREATH to your feeding regimen

The fungus creates a symbiotic relationship with the plant: Breathing in oxygen released by the plant and releasing carbon dioxide (released 24 hours a day through the breather patch on the bag) creating a natural self-sustained inexpensive CO2 generator

The 18'' x 18'' x 16'' large size will fit a Medium box perfectly along with many other package styles

18x18x1 Pleated MERV 14 Air Filters 3 Pack Drying Racks Low- 56 DBNordic 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.