6″ Inline HEPA Filter Box – 3‑Layer HEPA, Activated Carbon, Silver Ion – Black Iron Housing
$128.99 on Amazon.com (as of October 18, 2026, 12:55 PM EST) View details ↗
Elevate your indoor air quality with the KKOIUGQK 6‑inch inline filter box, engineered for HVAC, ductwork, and grow room applications. Its triple‑layer filtration system—pre‑filter, HEPA, and activated carbon with silver ion photocatalyst—captures 99% of PM2.5 particles while neutralizing odors, formaldehyde, and industrial gases.
Designed to fit 6″ inline duct fans with a 147‑265 CFM airflow capacity, the filter box measures 12.2″×7.9″×7.9″ and delivers an initial resistance of only 30‑70 Pa, ensuring efficient airflow without compromising performance. The rugged iron housing features a corrosion‑resistant black coating, providing long‑lasting durability in demanding ventilation environments. Easy installation is guaranteed with included mounting brackets for ceiling, wall, or freestanding setups.
| Fitment | 6″ inline duct fans, 147‑265 CFM |
|---|---|
| Dimensions | 12.2″×7.9″×7.9″ |
| Initial Pressure Drop | 30‑70 Pa |
| Material | Iron housing with black corrosion‑resistant coating |
| Filter Replacement Interval | Every 3‑6 months under normal conditions; monthly in harsh weather |
| Target Applications | HVAC, fresh air ventilation, grow rooms, basements, garages, workshops |
