Filtration · Mars Hydro
4-Inch Refillable Carbon Filter
A compact refillable carbon filter with a reversible flange.
$35.99
Recorded 2026-10-08 · excludes shipping and tax. Confirm current price and availability with the retailer.
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Specifications
- Flange
- 4 in
- Length
- 12 in
- Airflow Rating
- 210 CFM
- Media
- 1050+ Australian virgin activated carbon
- Service
- Refillable
- Included
- Pre-filter; belts not included
Specifications checked 2026-10-08.
Planning notes
Best use
A four-inch ventilation path where a serviceable carbon canister is preferred.
Before you buy
Confirm compatible replacement carbon, mounting hardware and installed airflow with the selected fan.
Strengths noted
- Refillable design can retain the filter body when the media is exhausted.
- Four-inch size matches compact inline-fan systems.
Considerations
- The listing does not include mounting belts.
- Refilling adds a maintenance step and requires compatible media.