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Old 04-03-2009, 07:55 PM
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bigred76 bigred76 is offline
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Default Re: Cup seal and valve

The reason is that delrin, which makes up the cupseal, is a very brittle product. As it wears, you need to be able to replace it. Thus, replacing just the cap of it is a lot cheaper than the entire thing. You could create an Autococker cupseal/valve stem for the Spyder, and it'd probably work just fine.
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