Vintage Double Hose

I have acquired a Spirotechnique Mistral in awesome condition. The nozzle is too large for the k valve tanks snd j 60 valves on my tanks. I remember that I thought someone turned them down? I realize it will ruin the chrome finish. But any ideas appreciated.? I want to match this to the triples I procured that was part of Bryan’s estate. He dived with royal mistrals and id like to call this the Pennington kit. Any help appreciated.

Captain turned my Souplair down many moons ago.

Thanks I’ll see what he can do! Stay warm and make some chili!!!!!