NENESUPPLY6 pc Duckbill Valves Compatible with Medela and Spectra Pump Parts Use on Spectra S2 Spectra S1 Pump in Style Harmony Symphony Replace Spectra Duckbill Valves and Medela Valve

I'm on my 3rd baby and have pumped a lot with all 3. I quickly switched to these after the yellow and white Medela ones crapped out within days/weeks of pumping with baby #1 and i havent gone back. These have way better suction and don't warp easily like the medela ones. The only "flaw" I've seen is that with this baby I noticed a few that I bought originally (almost 5 years ago) that were getting tears near the opening where the milk comes out and it wouldn't allow suction but these had seriously been used for hours and hours and hours of pumping before this occurred... and it may be more my fault because I always scrape the opening on the mouth of the bottle to get all the drops out before storing the milk. Fantastic product. Highly recommend.

I bought these to replace the originals that came with my spectra s2 & the suction is SOOO STRONG! stronger than the originals. Have only used for a day and my milk output has already increased!

Duckbills were so so so much better than the original piece that goes with the medela hand pump!

I purchased these to replace the valve in my Medela manual pump. The 6 pack is perfect for having a back stock. They are easy to clean and replace.

These work fine, they’re nothing special. I pump 3 times a day and just need to last two more months to make it a year so didn’t want to spend a ton. These work okay and I don’t notice any suction issues, but they make an obnoxious squawking noise like a duck call or something. Or a red nose on a clown. It makes me laugh!! Thankfully I work from home but if I was pumping in my office with the door shut my coworkers would DEFINITELY hear this. It does make it hard to make phone calls or anything while you’re using it, but whatever. They work.

I originally bought this for my Medela Harmony however they fit my Momcozy S9 Pro! So that's where I currently use them and my milk output went up but a couple ounces! Highly recommend.

I use these duckbill valves on my medela handheld pump and let me TELL YOU the suction is powerful! Absolutely love it!!

They work. Easier to clean than what comes with breast pump. Unsure if I pump any different with this than with other valves. I have only used this style of valve.