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 and made in France.
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||$5.00|
|Kosmos 8 collar||$5.00|
|Kosmos 10 collar||$5.00||Kosmos 12 & 14, Matador 15 collar||$5.00|