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The Spectra Baby USA Backflow Protector Replacement is a BPA/DEHP-free, lightweight, and compact accessory compatible with multiple Spectra breast pump models (S2, S1, 9 Plus, M1). It prevents milk backflow to maintain hygiene and milk quality, recommended for replacement every 3-4 months to support sustained pumping efficiency.






| ASIN | B072F9HL53 |
| Best Sellers Rank | #22,153 in Baby Products ( See Top 100 in Baby Products ) #83 in Breast Pump Accessories |
| Brand | Spectra |
| Customer Reviews | 4.8 out of 5 stars 4,719 Reviews |
| Is Dishwasher Safe | Yes |
| Is the item dishwasher safe? | Yes |
| Item Weight | 9 g |
| Manufacturer | Mom's heart |
| Manufacturer Part Number | MM011992 |
| Model number | MM011992 |
| Operation Mode | Manual |
| Product Style | Compact |
| Size | One Size |
| Special Feature | Portable |
| Special Features | Portable |
| Style | Compact |
S**I
Do not sterlize this
My original one got melted in the sterlizer so in I ordered a new one. Do not sterlize this, it cannot handle high temperatures.
A**R
Life saver
Works perfectly for my spectra. I thought my pump wasn’t working until I realized I needed to replace the parts
K**M
Works like the original part
I've had problems before when ordering replacement parts for my breast pump. For some reason, they can be slightly different from the original version, which means the parts don't fit together right or the pump doesn't work as well. Happily, this backflow protector worked just as well as the original parts. (I had to replace the previous part when it got mold inside that I couldn't scrub off.) It fits, and works perfectly well.
J**E
Great buy!
Great for spectra 1 and 2. I had both and these worked as great replacement parts. Much needed for longer term pumping. I typically switched these out every 3-4 months to help keep supply up
N**A
Good fit
I bought a replacement as the generic one didn’t fit the best - it felt like maybe the suction wasn’t strong enough. But with this product it felt like the membrane that came with the pump.
A**R
Only 1 protector, perfect replacement though!
Yes! So happy this worked. My pump bag got knocked off the counter and one of my backflow protectors snapped apart and broke off into the tubing! I was frustrated because my baby is 11 months old and I literally was only planning to keep up with pumping until she was 12 months! So happy that I was able to find this and it is working great! Yay!
Trustpilot
2 weeks ago
3 days ago