Foam lance fitting for Work Choice pressure washer

I was given as a gift, a Work Choice 1500 psi electric pressure washer.

My dilemma is I can't find a fitting that will work for my foam lance. It looks like a Bosch, but the base is a little bigger, and the tip is a little bigger as well.

Here is what the fitting from the wand looks like, along with a pic of a Bosch fitting next to it.

Does anyone own one of these and know of a fitting for a foam lance that works?

BLACKFIRE Pressure Washer Foam Cannon HP, foam lance, foam gun, pressure washer foam gun
Can't locate video that had fitting on various units, but hope this helps

Did you find a solution? I've got the same pressure washer but haven't ordered a lance yet. I wonder if that is the fix...finding a different lance that fits and has many fittings rather than trying to locate a stand alone fitting.