This refillable 4-inch carbon filter kit is designed for odor control in grow tents and hydroponic grow rooms. It pairs with 4-inch inline duct fans and ducting for intake or exhaust applications.
Its reusable design allows the activated carbon to be replaced instead of disposing of the entire filter. The kit includes an additional charcoal refill, along with tools and hanging accessories for installation and maintenance.
Key Features
Refillable Design: Removable twist-off flanges and a secure rubber stopper provide access for replacing the activated carbon.
Additional Charcoal Refill: Includes one extra charcoal refill, providing the filtration capacity of two standard 4-inch carbon filters.
Expanded Carbon Chamber: The larger chamber is lab-tested to provide odor-blocking effectiveness comparable to standard carbon filters without requiring manual compression.
Australian Virgin Charcoal: Uses premium-grade Australian virgin RC412 activated charcoal with a 1200+ IAV rating and high adsorption rate.
Reversible Flanges: The aluminum flanges can be switched between ends to help utilize the entire carbon bed.
Durable Construction: Dual-layer galvanized steel mesh with a protective gunmetal finish provides resistance to rust and corrosion in humid growing environments.
Intake and Exhaust Use: The hexagonal design supports air circulation for both intake and exhaust configurations.
Reusable Prefilter Cloths: The included prefilter cloths help block dust and other particles and can be washed as needed.
Tool-Free Refilling: The included funnel and steel scoop facilitate charcoal replacement.
Compostable Used Carbon: Used activated carbon can be composted after removal.
Specifications
Duct Opening Size: 4 in.
Total Dimensions: 11.81 x 7.04 in. (30.0 x 17.9 cm)
Flange Length: 1.57 in. (4.0 cm)
Flange Material: Aluminum
Flange Design: Reversible
Mesh Material: Rust-resistant galvanized steel with gunmetal finish
Carbon Type: Australian Virgin RC412
Carbon Grade: 1200+ IAV
Carbon Thickness: 38 mm
Maximum Airflow: 210 CFM
Size Guide
Duct Compatibility: 4-inch inline duct fans and ducting
Filter Dimensions: 11.81 x 7.04 in. (30.0 x 17.9 cm)
Flange Length: 1.57 in. (4.0 cm)
Compatibility
Compatible With: 4-inch inline duct fans and ducting for hydroponic grow rooms and grow tents
Included
- 1 duct filter
- 1 carbon refill
- 1 funnel
- 1 steel scoop
- 2 filter straps
- 2 prefilter cloths
- 2 rope clips
Warranty
Warranty: 2 years from the date of purchase against manufacturing defects, subject to the terms and exclusions stated in the official product manual
