Review on Nenesupply 21Mm Flange Pump Parts - Compatible Replacement Kit For Spectra S2/S1 Breast Pumps With Essential Accessories by Stuart Sugden

I really like the price of this set so I decided to give these a try. I was skeptical to purchase these because it is $30, but comparing having to spend $60 with the actual Spectra manufacturer it is worth trying them out. I'm currently using them for the first time and they seem to work great. The suction power is exactly the same as before. And as far as people being concerned about the little piece on the back flow thingie breaking, if you don't handle them rough it should be fine. And even if it does break it will probably still be worth just getting a replacement rather than spending $60. I feel like if you are rough with how you handle the parts, of course they are going to break. Just don't handle them like they are made of tungsten. I will try to remember to do an update in a few months to give a status on how I'm liking these and how it's all holding up.