Hydrofarm Active Air Pre-Filter for ACCF398, 8" x 39" ExHale CO2 5 gal) of growing solution

5 gal) of growing solution in your reservoir

The ExHale Original comes with a freshness seal that doubles as a hanger

Attribute name Attribute value Barcodes 10638104020692 (GTIN)

Attribute name Attribute value NPK Potassium (K) 2 Barcodes 10817867010151 (GTIN)

Hydrofarm Active Air Pre-Filter for ACCF398, 8" x 39" ExHale CO2 5 gal) of growing solutionExtend 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 size that matches