Sthil 011 avt replacement fuel line

[Ah D]

I have an 011 given to me about 2 yrs ago. I replaced the fuel line with yellow Tygon line. Went to cut a branch off of rooftop today and things went south. I tore it apart only to see the fuel line is hard as a rock. My question is what is a good after market line to use. Also what are the common sizes so I can keep some extra on hand.
Any members here sale it?

 

[Herbert Schwarz]

STIHL 009 010 011 012:
1120 358 0700