Maymom Pump Parts Compatible with S2 Spectra S1, Flange Valve Tube Bottle Backflow Protector, Not Original Spectra S2 Replacement Pump Parts Spectra Duckbill Valve Spectra Bottle (32mm Flange)

This is by far the most satisfactory purchase that I've made on Amazon. It came with not one, but three seal rings so the bottles do not losen off of the flange while pumping. Everything listed in the description came exactly as is. Two sets of valves, two bottles with caps to seal, it's exactly what I need. I purchased this to pack my pumping bag for work. Great price for the package. Extremely satisfied.

So I dont have a spectra pump but I DO have a bellababy. The standard flange it comes with didn't fit whatsoever and needed a much bigger size. I was able to use my bellababy pump and hosing but pulled the tips of the hoses off and it fits the maymom backflow preventer and flange. Super cheap and easy to clean. So glad I found these! Even more glad I didnt have to buy a new pump set just to have bigger flange options!

Awesome that i have the option to buy extra parts big enough for me in a relatively inexpensive brand.

Exactly as described/pictured. Works well with my spectra s2. Shipped quickly!

These are perfect for my spectra s2

These pump parts were okay. I did not love that you have to put these little rubber rings under the lid everytime, just more stuff to keep track of. They were not the most comfortable either. However, the price was good and they do the job.

The 32 inch flange is not actually 32” its smaller. I compared it with genuine spectra flange.Will need to return.The flange on right side is spectra original.

These pumping parts work well with my Spectra. Easy to clean. Durable. Has good suction power. I also appreciate the large sized flange. Some moms with larger nipples really need the 32mm flange.