Active Air Pre-Filter for ACCF246, 6" x 24" growlerwerks without any chemicals or additives

without any chemicals or additives that harm the Earth (or growers’ values)

Many production problems originate with too much nitrogen and potassium and not enough available calcium and phosphate

which simplifies cleaning

Max Capacity

phosphorous and potassium content allows it to be used for plant starts

Active Air Pre-Filter for ACCF246, 6" x 24" growlerwerks without any chemicals or additivesProduct Details Extend the effective life of your Active Air carbon filter with a corresponding Active Air pre filter. These pre filters block larger particulate matter such as dust and dirt from clogging the working surface of your filter. This keeps your carbon filter operating at top efficiency for much longer. When the pre filter becomes visibly dirty and discolored after several weeks, simply replace it. Check our large collection and find the