Yeah, I ordered from that "company" originally. They're a drop shipper operating out of a residence that also is listed as a carpet cleaning company. I didn't try to get my carpets cleaned, but I doubt they'd do that either. Took a couple weeks and a PayPal claim to get my money back. In the process, I called Yukon, who told me they no longer make the heat dump and do not have the materials available to make one. This all went down over the summer (of 2019) as I was installing my T2.
I made my own out of a stainless steel access door and a 285 degree fusible link. Possibly not as slick as the Yukon unit, but mine has the virtue of actually existing.
Here's the door I used: