You may need to enlarge the pipe hole if it's too tight fit. It works with standard and XS Hemera motor.
My Berd-Air setup:
- Silencer: https://www.thingiverse.com/thing:3429324
- Pump: http://bit.ly/Berd-Air
- Aluminium 2mm diameter tube: I have bought it in my local RC shop.
- Silicone tube You need 5x3: https://bit.ly/3ma5NRV