I recently bought some new jets and jet needles for my Primus model 1094 lantern. Originally the lantern was 300CP. Now I have bought both a 250CP jet and a 350CP jet. I also bought three 250CP jet needles and three 350CP jet needles. Is it possible to tell the difference between the 250CP and the 350CP jet needles? I am not able to distinguish between them. See attached photos.