Active Air Pre-Filter for ACCF246, 6" x 24" growlerwerks • Unbelievably fast - approximately

• Unbelievably fast - approximately 3 minutes for each batch

so you have to bring it to them

and eye-opening

such as a typical kettle souring process

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

Active Air Pre-Filter for ACCF246, 6" x 24" growlerwerks • Unbelievably fast - approximatelyProduct 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