20x20x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 3 Pack hydro-x * Chamber: 22*24

* Chamber: 22*24

The BETA-2 can control variable-speed fans by using the current temperature to increase or decrease the fan speed

Improved yields through increased nutrient release and uptake

the WD-1 must detect water within a adjustable delay time

Includes a sample of Azos from Xtreme Gardening

20x20x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 3 Pack hydro-x * Chamber: 22*24Pure 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