Hose connection help please

I have a PowRyte electric power washer. I have been very happy with it except for the hose. As with most power washers the hose that came with it is very stiff and will not stay unrolled.

I recently purchased a Uberflex hose but I have not been able to find an adapter to attach it to the power washer. I have attached a picture of the hose and the connector that came with the power washer. From my research the connection looks like a Karcher type connector.

I have not been able to locate a correct adapter.

Thanks very much for any help anyone can provide.

Don