The New 'Quick Connect/Release' O-Ring has an Outside Diameter of approximately 9mm. *

Specification :- EPDM (-50 to 150 degrees C).

* Please note that the 'Quick Connect/Release' O-Rings are not the same as C-Clip O-Rings (sometimes red in colour) which are used on older type trigger guns*  I do not sell this type.

* It is recommended that 'Quick Connect/Release' O-Rings have a very light coating of Silicone or Vaseline to make it easier to change between the various attachments* 

I sell other O-Rings for Karcher machines, please see my other ebay listing.

Please e-mail me if you have any questions.