defroster duct work

Do you have a link or any information to show where you found this?
here's the one I bought, it should slip over small part on heater box and the new hose should fit over it, or at least I hope will know when it gets here...also duct hose from o Reilly's
2"4-PLY STRAIGHT TURBO/INTAKE/INTERCOOLER PIPING SILICONE COUPLER HOSE BLACK/RED | eBay