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Title: Not what I wanted
Review: It is really helpful to have extra bottles and pumping parts, but I didnt realize that the pump flanges are not the same two piece ones that come with a pump in style. Although they are supposed to be the same size (24mm) I feel that the fit is very different, and I found them quite uncomfortable to pump with. I do have them stashed in my drawer at work in case I needed a fresh set in a pinch, but if I had realized these were one piece and not two piece units I would not have bought them.
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