Nenesupply 4 pc Duckbill Valves Compatible with Medela and Avent Pumps Not Original Medela Pump Parts Work with Medela Pump in Style Medela Symphony Replace Medela Valve Membrane and Avent Valve

I highly recommend this product.

I have an avent manual pump and own a Medela double electric pump in style and these work perfect for both! I was tired of cleaning the small membranes that the Medela originally comes with and felt I had to replace every month due to suction. And after a long while it was time to replace my avent duckbill. These are easier to clean than the membranes that originally come with Medela pump and have a great seal. These aren't as thick as the duckbills that originally come with the avent pump wich is what helps them be compatible with the Medela pump. If you have the older pump in style and done with cleaning the small membranes then you need these.

I bough several parts but usually don’t fit my breast pump. This one fits perfectly and it’s super durable.

It’s so hard to get replacement parts for the Avent pump but these are great! They fit well and my output has been steady since I switched the original duckbills out for these.

I was struggling to find pump parts for my Philips Advent Manual pump and these work perfectly.

I bought these because I love the little duckbills that sometimes come with my motif Luna replacement parts. But sometimes I get regular duckbills, and they seem to wear out extremely quickly with how often I pump. I saw these suggested as an alternative and I love them. The pull tab is not something I use often but it’s nice to have. They seem to have great suction and don’t wear out nearly as quickly as the regular duck bills.

Works great in my Philips hand pump duck valve!

I have a Zomee 2 and wanted to try these out, but I also use an adapter to use medela containers with the Zomee instead of their prescribed bottles that are wide neck and have a smaller volume. Well, the edges/lips of these valves are wider than the edges of the ones that come from Zomee, so when you screw on the adapter it catches the valve and pushes/squashes it. There’s still suction and milk caught so it’s not a complete failure, but either this or the fact that the mouth isn’t opening as much cause the milk to backup into the diaphragm of my pump sometimes and I have to change modes to get the milk to drop down. So okay, but wouldn’t purchase again.