there is also another brand that looks exactly like the presto
lite tips that works fine. I got mine from Santa Fe Jewelers
Supply, buy they don't have them on their website, so I don't have
the name off hand."
You are right, Goss, Uniweld, Prestolite, Genco, are
interchangeable. However there are two types, snap on and screw in,
the standard Prestolite handle is screw in. (Smith is proprietary.) I
came across a replacement chart before I sent a reply, it listed
torch tips by part number and the replacement part number from Goss,
Uniweld etc. After seeing the price for tips through Indian Jewelers
Supply I deleted it, but yes you can get a close equivalent.