4" - 400mm Magnum Hydroponic Carbon Filter

$69.95 (was $73.44)


  • Removes 99.5% of airborne odors
  • 8.5" Wide x 18" Height
  • Cotton pre-filter included
  • 170-270 cfm Range
  • Weight is 13lbs with 9.8lbs 100% Australian Carbon
  • Built-in 4" flange
  • 12-18 months average life span


Magnum Pro carbon air filters are made exclusively with Australian Mined Carbon, which is 2 to 3 times lighter, more absorbent and more porous than plant-based carbon. They also feature a much thicker carbon thickness than most. Magnum Pro filters use 2 inch thick carbon, as opposed to the typical 1” to 1.5” thickness used in most filters. Australian Mined Carbon originates from mined coal. The coal is processed by treating it with oxygen to generate millions of microscopic spaces between the atoms, thus expanding the surface to 2000 square meters from each gram. The resulting carbon can absorb more than its weight in particles, making it the ideal substance for filters.