Nenesupply Silicone Backflow Protector Membranes Compatible with Spectra Backflow Protector Not Original Spectra Pump Parts Work with Spectra S2 S1 Breast Pumps (4pc Membrane)

Worked great for my spectra pump parts. Have held up well to multiple washes in the dishwasher.

Good purchase. Fits my Spectra S2 good! I would recommend to others!

High quality and 100% compatible with Spectra pump!As a first time mom of December 2023, I was curious to see how my pumping/breastfeeding journey would go. And as I was finding what worked for me, using the spectra before I transitioned to a wireless pump.These parts were perfect when I needed an extra set, while the other ones fries from being washed.

They fit my spectra well.

Fits perfect with Spectra S1!

These are pretty good for the cost; however, the (original to pump kit) speCtra tubing falls off of these mid-pump a lot if you aren't super vigilant (it seems the connecting piece of plastic is a tad smaller than the original speCtra parts) and the pieces will occasionally slide apart when lightly bumped by an arm (also has happened mid pump and is slightly more difficult to fix while continuing to pump....had never happened with the brand set). Makes it a little hard to pump with confidence, especially during MOTN. All in all, not bad, but if I find the brand parts near me (even if slightly more expensive than these) I may buy those next time.

These parts fit my Spectra S1 perfectly. The parts are interchangeable with the pump tubing and they fit just fine with the existing back flow parts.

Works exactly as it should with the original spectra pieces!