Systemair RVK315-E2A1

The Systemair RVK315E2-A1 is a 185w centrifugal fan made in Germany with an ebm-papst motor
As the name suggests it is a 315mm diameter fan.
The approximate air output is 490l/s and will remain within 90% of that rate even when placed under high pressure applications like drawing through long lengths of duct or carbon filters.
The Systemair centrifugal fan is ideal for use in high pressure applications precisely because it will sustain a reasonable airflow regardless of the pressure.