This is very different from the original. I have the 2017 version with different flanges for each size. These are flanges 24-32 mm. 24mm is an insert for a 28mm flange. The same sealed circuits, valves, caps and hoses. Duckbill valves also work well with these bodies. The collection bottle has a standard wide neck and is of high quality. They were supplied with a sealing washer like the originals. Bottle collars can be used with the included Lansinoh nipples and caps. Overall this is a great purchase. A bonus is the fact that this kit works well with other closed system pumps. Cons: Generally quite heavy, but durable.
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