Elastic closures on both ends of sleeves for secure fit
carbon A/C air filters help to remove gases
Use at a rate of 1 tsp per 5 gallons when buds are forming and continue with every fertilizer application during the blooming cycle
Bugs may return (as is possible with any insect control)
This ensures an airtight seal that will keep particles out and exhaust flowing one way
28x34x1 MERV 13 AC Furnace Filters 6 Pack Cone Filler Elastic closures on both endsNordic 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