3D Printer Fume Fan / Duct Coupler 120mm fan to 4-inch duct

Wanted to keep the fumes out of my workshop and wasn't satisfied with the options available and wanted to try my hand at something a little more efficient. Currently on the case I built for my printer. Bolts directly to this 120mm fan: https://www.amazon.com/gp/product/B009OWRMZ6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1.

For the exhaust duct, I'm using this hose: https://www.amazon.com/gp/product/B001PQDUA0/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

Use a zip tie or hose clamp to attach