NENESUPPLYWide Mouth Breastmilk Collection Storage Bottles Compatible with Spectra Pump Parts Replace Spectra Bottle Compatible with Spectra S1 Spectra S2 Breast Pump

These bottles are shorter than what came with the spectra, which is more convenient when pumping. They work perfectly, have held up well in the bottle sterilizerzer, and the lids are handy. Definitely recommend.

Muy buena calidad y acabados, es compatible con el spectra 9 plus que yo tengo. Cierran bien, fácil de limpiar, plástico de calidad. Los recomiendo

I've been using these bottles for over 1 year now. It was mostly for creating a freezer stash or relief pressure/clogs while I nursed, rather than someone that would use it daily to exclusively pump.Now that my daughter is onto solids, I continue to use these to freeze food for her. These bottles are sturdy and made of good quality. To be honest, they work just as well as the real bottles. Sometimes I don't even remember they aren't Avent bottles. I love how I can just pump with my Spectra S2 straight into these bottles, then later feed my daughter with an Avent nipple, and I don't have to transfer or pour milk anywhere, risking spillage.

I have used them for 1 week so far. So far so good. They fit my Spectra S2 perfectly! The seal ring is a great feature. No complaint so far.

Bottles are fine but the ml/oz indicator lines are completely off. I checked with a scale and they were off 5% for the larger amounts to >20% for the smaller amount (so 50ml measured on the bottle is actually less than 40ml)