Looks like MAE was a gal who liked different hats....never seen that style before..All the ones I have seen have the "cross" inside the cup.
Joe
That vent probably is a 2 way check valve....lets air in and out only when fluid goes up or down keeping gasses from escaping when not in use

[This message has been edited by jkyocom (edited 02-02-2007).]


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