Active Air Pre-Filter, 6"x24" Pre-Filter:Active Air Pre-Filter, 8"x39" Fosphite may be applied by

Fosphite may be applied by various application methods

Porcupines

Aquaponics

Ours come in 8 different sizes: 200/150/100/75/50/25 micron rated and 1/2" Mesh as well as 1/2" Mesh

Active Air Pre-Filter, 6"x24" Pre-Filter:Active Air Pre-Filter, 8"x39" Fosphite may be applied byMake the most out of your Active Air filter with a corresponding Active Air pre filter. Find the matching size from our large collection! Why choose Active Air filters? All filters are maintenance free and feature long lasting activated virgin charcoal that keeps your air odor free. Inside each filter, the charcoal is carefully packed to ensure consistent and even air flow throughout the carbon bed for full use of the filter. Stock up on pre filters