Check the listing for details. Carbon Filter XL 4", Australian Charcoal, Odor Control, Hydroponics, Grow Rooms. Color: Black, Condition: New. Listed at 69.99 USD. DUCT CARBON FILTER Carbon Filter XL 4", Australian Charcoal, Odor Control, Hydroponics, Grow Rooms Designed to eliminate odors and chemicals for grow tents and hydroponics rooms. Features premium-grade Australian charcoal with higher absorption and longer life rating. Contains heavy-duty aluminum flanges, steel meshing, two hanging straps, and two clothed pre-filters. Enables maximum airflow passthrough for both intake and exhaust configurations. Duct Opening: 4” | Length: 16" | Airflow Rating: 300 CFM | Carbon: Australian RC412 at 1200+ IAV | Thickness: 38mm Product Description A high-airflow inline duct filter designed to eliminate odors and chemicals, most used in hydroponics builds, grow rooms, kitchens, smoking areas, and other ventilation projects. Features premium-grade Australian Virgin charcoal bed made up of activated carbon. Its extra-large size enables a greater capacity of the activated carbon to extend its lifespan while maximizing airflow passthrough. The filter can be used in conjunction with an inline duct fan for use in intake and exhaust configurations. Heavy-duty construction contains aluminum flanges and dual-sided stainless-steel mesh. The flanges are built with hooks that can clip into rope hangers to suspend this filter onto grow room support beams. Includes two machine washable pre-filter cloths to prevent carbon residue and two rope clip hangers to suspend the extra-large carbon filter above ground. Premium Grade Carbon Each carbon filter features a premium-grade Australian Virgin charcoal bed rated at 1200+ IAV. It achieves a 38mm charcoal bed thickness and wider mesh openings thanks to its higher microporosity and surface area rating. These factors not only enable a greater adsorption rate without restricting free airflow but also extend the carbon filter’s lifespan by up to 33%. FRIENDLY SERVICE Contact us by email support (a) acinfinity.com or send us a message through ebay if you have any questions, and we'll be happy to help. FAST SHIPPING We ship out all orders from California within 1 business day of payment. Orders are shipped with UPS or USPS, and include tracking info. FREE RETURNS If you're not happy with your purchase for any reason, please contact us to receive a prepaid return label - Return shipping is absolutely FREE. Copyright © 2022 AC Infinity Inc. All rights reserved.