The Kootenay Green Line Carbon Filter 425S with 4" flange x14" delivers efficient and eco-friendly air purification. This lightweight filter is part of Kootenay Filter Inc.’s premium Green Line, made using 100% virgin activated carbon sourced from renewable materials. Designed for both exhaust and recirculation applications, it features a pre-installed prefilter and a high-performance granulated carbon core.
Carbon: Granulated Virgin Activated Carbon
Prefilter Installed: Yes
CFM/M3 Ratings:
Max Exhaust CFM – 125
Max Recirculate CFM – 250
Max Exhaust M3 – 212
Max Recirculating M3 – 425
| Carbon: | Granulated Virgin Activated Carbon | |
| Prefilter Installed: | Yes | |
| Measurements and Weights: | Imperial | Metric |
| Outside Diameter: | 7.9" | 20cm |
| Lengths: | 13.8" | 35cm |
| Total Weight: | 8.8lbs | 4.0kg |
| Carbon Weight: | 4.9lbs | 2.2kg |
| Carbon Bed: | 2.0" | 5.0cm |
| Max Operating Temperature: | 176F | 80°C |