The fan has the functions of the 494144 with the same installation requirements. 

Ultra low profile for discreet installation

Continuous running fan - Constant Volume Extracts up to 35 l/s

High performance on trickle to avoid going to boost too often

Unique settings lock to prevent tampering

If you know the 494144 fan, you'll see from the installation instructions in the listing for this fan that the setup and commissioning is the same as the 494144.

If you're after the Vent Axia 494144 fan, but dont want to pay the for the branded version, this is the option for you. 

2026 Model