G2S stop switch

[pjpsoft]

One of my top switches doesn't seem to work fine.

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I can't find a replacement on Geeetech website. Any body knows where I could buy one?
thanks

[Mark]

check this one here:
http://www.ebay.com/itm/331639093622

[pjpsoft]

Thanks.
I also found some at Amazon as soon as I figured out the right search term 'liit'