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@superbagneres
I'm trying to source a replacement washer for my Beto-branded track pump as it's run out of puff (pictures attached of the current washer). Not having much luck working out how to search for a replacement online. Can I simply replace it with a 'normal' O-ring instead of this 'dome-shaped' washer? The inner diameter of the current washer is 12.5mm and the inner diameter of the pump barrel is 28mm.
Found it - looks like I can use SKS part number SKX3234.
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