Bathroom vent adapter

Shower cabin was by factory design ‘vented’ by a 90mm PC fan with not much effectiveness.This converter on the bottom has a 90mm inner diameter matching the shower cabin hole. The screw holes match the spacing of the 90mm PC fan.Upper side fits into a 125mm in-line fan suction side. It is designed to split the incoming airflow from the cabin and the bathroom too.Recommended print orientation on the picture - this way only ~6g of support material needed.