Fisher & Paykel Rangehood Flap

I bought a 90cm Fisher and Paykel rangehood and learned that it does not come with the flaps blocking reverse flow of the air. Obviously you can buy and order them as a separate package... but who has time for that... and also why do we have a 3D pinter isn't it?

The rangehood:
https://www.fisherpaykel.com/nz/ventilation/contemporary-ventilation/wall-rangehood-90cm-box-chimney-hc90dcxb3-50118.html

It has a 150mm connector with the ring housing the flaps what can be reduced to 125mm with the supplied connector.

You will need to print two of this flaps.
You may need to sand the pins to achieve a roundish shape after printing and to fit in the holes on the housing ring.
You suppose to install them upside down as you printed them (so the flap down easily happens in off state)

It is very easy to put them in by deforming the housing to oval shape, position the flaps and release the oval to get ring shape again.

Enjoy....