92mm Fan to 100mm Pipe Adaptor for UK Pipe Flange

Designed to sit over a 92mm PWM Fan with space to run cables and connect it to a 100mm PVC Pipe Flange, I made this part as a piece for my air recirculation system. I connected it to a 90 degree elbow to a rectangular 100mm PVC Pipe at each end to feed air round my enclosure from top left to bottom right to even out air temperature over the whole height.

This will totally enclose the fan and is intended to be silicone sealed both to the enclosure and to the PVC Pipe, although you can use it a