12x20x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 3 Pack biological fertilizer - External timer may be

- External timer may be installed up to 50 feet from the ILS4 switcher box

ventilating attics

2′ x 4′ trays for the 5′ x 2

Causes moderate eye irritation

It keeps stems clear and free flowing

12x20x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 3 Pack biological fertilizer - External timer may bePure Green Plus Carbon Eco Friendly AC Furnace Air Filters by Nordic Pure starts with an environmentally responsible non woven, high loft, antimicrobial filter media made of fine gauge polyester. 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 come to rely on from our Pure Green media which will now be white in color on the