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AC Infinity 4-Inch Duct Carbon Filter XL | Australian Activated Charcoal

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AC Infinity 4-Inch Duct Carbon Filter XL – Extra-Long

The AC Infinity 4-inch XL extra-long duct carbon filter is designed to reduce odours in grow rooms, indoor gardens and compatible extraction systems. Its replaceable pre-filter cloths help prevent dust and larger airborne particles from clogging the activated carbon bed. The extended filter body provides more activated carbon capacity than the standard-length model.

Verified features and specifications

  • Duct connection: 4 inch.
  • Manufacturer-rated maximum airflow: 300 CFM (approximately 510 m³/h).
  • Carbon: Australian Virgin RC412 activated charcoal, 1200+ IAV.
  • Activated carbon bed thickness: 38 mm.
  • Hard-wearing metal mesh housing and aluminium flanges.
  • Includes washable pre-filter cloths and hanging fittings.
  • Extra-long carbon bed design intended for greater capacity and service life.

Manufacturer identification

AC Infinity model: AC-DCF4-XL. Manufacturer UPC: 819137023000.

Installation and maintenance

Select fan and filter sizes carefully to maintain the required airflow. Fit the pre-filter cloth correctly, provide sufficient support, clean washable cloths when required and replace the activated carbon filter when odour adsorption declines. Performance varies with air conditions and the connected ventilation system.

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Extended-Life 4-Inch Carbon Filter for Superior Odour Control

Get longer-lasting performance from your grow room ventilation with the AC Infinity 4-Inch Carbon Filter XL. Featuring an extended carbon chamber packed with premium Australian Virgin activated charcoal, this extra-large carbon filter delivers exceptional odour removal while maintaining strong, unrestricted airflow. Ideal for compact grow tents, propagation spaces and hydroponic systems, the XL design offers increased carbon capacity for a longer working life, helping you spend less time replacing filters and more time growing.

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Frequently Asked Questions

The AC Infinity 4-Inch Carbon Filter XL features a larger 16-inch carbon chamber, allowing it to hold more activated charcoal than the standard version. This increased carbon capacity extends the filter's lifespan while maintaining excellent airflow and reliable odour control.

The 4-Inch Carbon Filter XL is designed to remove unwanted odours, volatile organic compounds (VOCs) and airborne contaminants from grow tents, propagation tents, hydroponic systems and other indoor ventilation setups. When paired with a compatible 4-inch inline fan, it helps keep your growing environment clean and discreet.

The AC Infinity 4-Inch Carbon Filter XL supports airflow of up to 300 CFM, making it ideal for larger 2x4 and 3x3 grow tents or growers looking for increased airflow capacity from a compact ventilation system.

The filter is filled with Australian Virgin RC412 activated charcoal, rated at 1200+ IAV. This premium-grade carbon offers excellent odour adsorption, improved airflow and a longer working life compared to many standard activated carbon filters.

Yes. The filter is suitable for both intake and exhaust ventilation systems, giving you flexibility when designing your grow room. Its aluminium flanges are reversible, helping distribute wear more evenly and extend the filter's usable lifespan.

The AC Infinity 4-Inch Carbon Filter XL is an excellent choice for growers who want longer-lasting odour control without increasing fan size. Its extra-large carbon bed, premium construction and high airflow capacity make it ideal for compact indoor growing setups where reliable air filtration and reduced maintenance are priorities.