Greenforce O-ring size

[tight]

Hello,
i have a problem:
i have an old greenforce tristar head and need to replace the o-ring at the front lense.
anybody knows the size of this o-ring? hope you can help me, because i cant find something in the internet.
tight

 

[DimitrisV]

Hi

Why not mesaure the old one or visit a store with o-ring to measure the old one and buy some new.

Dimitris

 

[tight]

the old one is worn out but i measured the notch and looked for o ring sizes
then i tried 53.65x2,62mm and it was perfect