18x24x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 6 Pack Plant Support The number of units and

The number of units and the size of the ionization tubes are dependent upon the airflow in the system and the severity of the pollution problem

Electrode: Replaceable glass sensor and reference tube electrodes

Mix into your reservoir according to the Rx Green Solutions feed chart for your crop type and growth stage

1 x Fan Controller

18x24x1 Pure Green Plus Carbon Eco-Friendly AC Furnace Air Filters 6 Pack Plant Support The number of units andPure 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