A note of explanation: All #2 size burners will fit in all #2 collars; and likewise all #1 burners will fit into all #1 collars. Further, the threads of Kosmos burners and collars are metric and therefore not interchangeable with US collars #2, #1, or #00 which are not metric.
See this page for photographs of Kosmos burners. and here for a complete table of Kosmos parts' dimensions. All are solid brass,#6, #8 & #10 are made in France. The #12/14/15 collar is double-heavy gauge & made in California.
Please note that Kosmos #12 & #14 burners have the same bottom threading, so their collars are identical. Also, Matador #15 burners are interchangeable with Kosmos #14
burners: each threads into the same Kosmos #14 collar, although they do take different chimney sizes.
Kosmos 6 collar, made in France | $5.00 | |
Kosmos 8 collar made in France | $5.00 | |
Kosmos 10 collar made in France | $5.00 | Kosmos 12 & 14, heavy gauge, made in USA, Matador 15 collar | $15.00 |