This gaslight burner has a "Slip On" mount as opposed to a threaded one. If you're not sure which burner you need, look at the base of the tube. It is either threaded or slip-on.

Cast aluminum head with threeo ceramic burner tips included to accept standard gaslight mantles, like the SM2. 7 1/4" long aluminum venturi. This burner fits Arla Coronet gaslight heads which were pre-1997. See TMI3 for later models.