Carbon Filters & Silencers happyhydro | AC Infinity Carbon Air Filter XL, 4 Inch

• Duct Opening: 4” | Length: 14.37" | Airflow Rating: 300 CFM | Carbon: Australian RC412 at 1200+ IAV | Thickness: 38mm

The most popular type of inline duct filter, used in hydroponics structures, grow rooms, kitchens, smoking areas, and other ventilation projects.

The ash from premium-grade Australian Virgin charcoal is made up of activated carbon and has an especially long lifespan. Its extra-large size allows for a greater capacity of the activated carbon to remain in operation while also maximizing air flow through it. In intake and exhaust configurations, the filter may be used with an inline duct fan.

The filter is constructed of heavy-duty aluminum flanges and dual-sided stainless-steel mesh. The flanges may also be reversed to further extend the life of the filter. A machine-washable pre-filter cloth is included to eliminate carbon residue, as well as rope clip hangers to suspend the extra-large carbon filter above ground.