20x25x1 Pure Green Eco-Friendly AC Furnace Air Filters 24 Pack soil nutruient Complies with the USA Federal

Complies with the USA Federal Standard 21 CFR 1040

CFM 334 at 0wg 264 at 0wg 201 at 0wg

36"-40" hanging height recommended for germination

5-inch long twin blades

NatureVac Locks out moisture and air

20x25x1 Pure Green Eco-Friendly AC Furnace Air Filters 24 Pack soil nutruient Complies with the USA FederalPure Green Eco Friendly AC Furnace Air Filters by Nordic Pure are made from an environmentally responsible non woven, high loft, antimicrobial filter media. The MERV 6 rating has a lower pressure drop, minimizing energy consumption while maintaining a high dust holding capacity. As we continue to keep our eyes on media technology advances, our Pure Green media will be changing its appearance. Please expect the same quality and performance you have