19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange

These replacement parts for my Spectra S2 were exactly what I needed! The set comes with clear instructions and images, which made swapping everything out super simple, even for someone like me who usually finds pump parts confusing. I especially appreciated the QR codes included; they linked directly to step-by-step instructions and even to individual replacement parts if I ever need to reorder just one piece. The parts themselves feel durable and well-made, and they fit my S2 perfectly without any issues. Everything works smoothly and has held up well after multiple uses and washes. It’s such a relief to have a compatible, high-quality option that makes pumping easier and less stressful. Highly recommend for any Spectra S2 user who wants reliable replacement parts without the guesswork!

These worked great, just as well as the brand name. The awesome price point meant I could buy 3 pairs so I didn't have to wash while I was at work without a fridge. These lasted an average of 1-2 sessions a day (per set) for 8 months and I will be keeping in case I ever have another little one

This flange saved me!!! Money AND comfort! I was a little worried because of some of the reviews I saw about it not fitting the spectra quite right, but for me it fit PERFECT! HERES A TIP: Just screw it on extra tight, and it won’t ever come loose.

This product works great with the Spectra pump and if you are having a hard time with the flange it originally came with I highly recommend trying different sizes! This one works great!

Prefect fit!!

These work great with the spectra s1 pump. They are easy to clean and have lasted 6 months of pumping so far, just make sure to replace the duck bill valves. Very impressed with the quality!

Overall these are great and work great but one thing to note that I figured out the hard way was that the container part loosens from the flange if you are up and walking around. I ended up losing some milk because it came apart mid pump. This was only due to me waking around doing things while pumping. If you are sitting during your pumps, there is no issue.

Love these 21 mm flanges! They have held up well even with the constant sterilizing in the microwave. I definitely recommend purchasing an extra pair of flanges to have on hand, especially when the dirty pump parts pile up!