Eyeball & Retaining Ring White

Question:i have a jetted tub that is missing an eyeball. The eyeball is 1/2 in ID. It is held by a retaining ring and sits against a compression spring. It looks like a Hydro-air fitting but I am not sure. I cannot locate a manufacturer label on my tub. I'd like to replace the eyeball. The eyeball and retaining ring look a lot like HA 103808 wht except the eyeball itself has a short enxtension one end. Do you think this replacement or one similar would work? Do you possibly recognize the manufacturer from the jet description? Also, do the escutcheons for most of these jets screw off? It's not real obvious and i don't want to break one. - Mike (05/21/2018)