Maymom Pump Parts Compatible With Spectra S2 Spectra S1, Incl Flanges (28mm) Valves Tubes Bottles Backflow Protectors, Not Original Spectra S2 Accessories Replace Spectra Flange Spectra Duckbill Valve

This is overall a good product and i used the majority of the items and still am. However the flanges are not comparable to the spectra they are way bigger and your entire nipple and Arreola will be sucked through. It caused purple bruises on my nipples. So size down for sure on the flanges.

Just received the product, my wife shall check it out later, but was packed well, and looks great!

The bottle doesn’t fit in the bottle holder on the Blue Spectra Breast Pump!

Bought this to use as an extra pump parts set formy Spectra pump, and use alternately with my Spectra parts. Don’t notice any difference in suction or function. Price is great. There’s a small booklet included to show you how to put together and pull apart all the parts properly so they don’t accidentally break, which is SUPER HELPFUL.. I don’t remember my Spectra pump having something like that. Storage containers’ volume marking are clear and easy to read, but it’s a little difficult to pour the last few drops of milk out due to the shape of the top of the container. One-piece flange is easier to clean than my Medela flanges. Came with 2 white duckbill valves and 2 blue ones; the blue ones are great to help distinguish from my other older set of white ones.. I like to keep the sets separate so that I can replace a set of 2 old valves together. Love that MayMom offers flange sizes that Spectra does not, but 1) I’m still not sure what the best size is for me and 2) doesn’t seem like MayMom offers the in-between flange sizes in all their product bundles. Have not used the tubing or storage caps yet so can’t comment on those.

These work well for having a spare set of parts. I'm currently getting ready to go back to work, and so I'm bottle feeding during the day for when he will not be with me. So I am currently pumping at least twice a day. This spare set is handy since I have it ready to go while the other parts are drying. I have the Spectra S2, and I generally do not mix these parts with the Spectra parts. I do find an issue with these Maymom bottles in that they do not hold as much as the Spectra bottles and it's a bit more work to get the last drops of my breast milk into storage bags. I wish they would fix the design of the bottles to where it can all flow right out like the spectra bottles. Overall, they are a good value for the cost.