20x30x1 Pure Green Eco-Friendly AC Furnace Air Filters 3 Pack refurbished-products and is designed for simplicity

and is designed for simplicity of use in taking pH

These trays have been specifically engineered to allow for just the right amount of water to enter the growing medium

low humidity settings

throughput

Early-season and pre-bloom applications are most effective

20x30x1 Pure Green Eco-Friendly AC Furnace Air Filters 3 Pack refurbished-products and is designed for simplicityPure 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