O-Ring and Pliers

[sdumper]

I am replacing my evap cap and need to find a brass O-Ring and a pair of O-Ring pliers. I would think my local Ace hardware might have a suitable O-ring but I am not sure how to describe the O-ring to the parts guys over the phone. Also do I simply measure the diameter of the evap head and tell the hardware guys the diameter and say I need a spreadable O-ring that will fit this diameter? Also what about the thickness any thing special to tell them?

[Marvin]

I am not sure, but here in Brazil we call ¨external retention clip¨ . Just check if they have the plier too, you will need it.

[Jack]

A seeger ring.

[sdumper]

Cool guys thanks...I was able to get a snapring solid brass and some pliers at Ace hardware in the states for $12 and it worked perfectly.