Nenesupply Handsfree Valves and Membranes Compatible with Freestyle Handsfree Breast Pump. Include 2 Membranes and 2 Valves. Work with Wearable Pump (2V2M)

loved this so much

Terrible. Just terrible!! They are different material than the one piece set. They make fart noises and you can see the diaphragm touch the top of the plastic cover because they are so stretchy.

Im not sure if it is user error or something with this product, but I find these incredibly difficult to place onto the pump and have it seal correctly. I am constantly having to take the pump apart and readjust the pieces onto the pump. Even still it always feels like something is off and the pump is not working efficiently with these in.

They work ok. I was desperate to find replacements since I can't find actual medela ones anywhere. Every time I have used them they make a noise like a pig grunting. Mooing I would understand, but the pig noise is odd. I will be looking for a better replacement part. Get them only if you have to have a replacement.

I was surprised to see this have 2 parts instead of the one piece the medela handsfree cups come with. However these do fit and seem to be a good backup.