Spectra Backflow Protector, 1 pce

Replacement part for your Spectra Breast Pumps. Replace every 6 months.
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This a replacement backflow protector for your Spectra S1, S2, 9Plus and M1 Electric Breast Pump. The Spectra Backflow Protector creates a complete physical barrier between your milk and the pump motor, ensuring that your milk is protected and that pump performance is maintained. The large membrane is included.

Price for one piece only. Please order a pair if you are double pumping.  Your backflow protectors should be changed every 6 months, or when you notice damage to the silicone diaphragm on the inside of the backflow protector.


  • Acts as a physical barrier between milk and the pump motor to prevent milk from flowing to the pump
  • Large membrane included
  • Part connecting to Spectra breast shield is fragile
  • When slotting into Spectra breast shield, make sure it is not too tight as it will result in difficulties pulling out

    This product has a limited returns policy for both change-of-mind and warranty coverage. We encourage you to contact us to ensure that this product is suitable for your family prior to purchase. For more information on our returns policy, visit our Returns Policy page.