Pump Parts Compatible with Spectra S1 Spectra S2 Spectra 9 Plus, Incl 8-Count Duckbill Valves for Spectra and Medela Pump in Style, 4-Count Silicone Membrane for Spectra Backflow Protector

Or rather they didn’t…

TLDR: The convenience of having multiple sets of clean, dry pump parts available at all times is priceless. Also the pull tabs on the duckbill valves make removal from the pump a breeze!As a busy mama to the world's clingiest and heaviest newborn (okay, clearly I'm exaggerating, but gosh this girl feels heavier by the day and refuses to let me put her down EVER) I barely can find the time to wash my pump parts let alone wait for them to fully dry before my next pumping session.I struggle with low supply but desperately want to provide my little milk goblin with as much of my own milk as I can so I've been nursing her and then pumping directly after each feed (and then bottle feeding whatever I've managed to pump along with supplemental formula) since she was a week old. She is now almost three months old (side note: time flies when you're sleep deprived. Also where the heck did my teeny tiny baby go?) and I've been pumping multiple times a day AND in the middle of the night for what seems like forever.It feels like when I'm not nursing or pumping I'm cleaning pump parts or waiting for them to dry. So having multiple clean, dry sets available at all times helps to save my sanity and not stress about waiting for the parts to dry. It was rough when I only had the one set that came with the pump because when I was pumping every 2 to 3 hours the parts never seemed to be dry by the time I was ready to pump again.They fit my Spectra pump perfectly and the pull tabs on the duckbill valves really do make it a whole lot easier to remove from the pump when you're done. All in all I'm so happy that I decided to make this purchase -- having the extra parts available to me has been invaluable and I much prefer these duckbill valves to the original ones that came with the pump itself. If you're on the fence about purchasing this set I would highly recommend just going for it -- trust me, it'll make your life a whole lot easier!

Edit:After a week of use my supply has come back stronger. I'm guessing it took a bit to get used to but I now make an additional 50ml of milk to what I previously did, and suction doesn't need to be as strong. I am now using level 4 instead of level 5/6I am an exclusive pumper and these are terrible.I'm normally a level 5 on the spectra but have had to go up to level 6. My supply has decreased. Not happy!

Duck bills are okay but the other part is crap thin doesn’t work very well creates low supply

My wife gets these for pumping. She is exclusively pumping so she's pumping 7 times a day and she likes to have 2 sets, so she gets different colors to keep them separate and to be able to keep straight which ones she used last so that she uses them evenly. She said these are great and especially loves the little pull tab on the duckbills because then it makes it much easier to get them off when it's time to clean and it doesn't stretch them out. She replaces the duckbills every month and the backflow membranes every other month. She likes that they gave you 8 duckbills and 4 backflow membranes because it works with her replacement schedule.