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Diaphragms (also known as backflow protectors) keep milk and air from flowing back up the tubing. They prevent milk from getting into the breast pump motor and also keep your tubing as clean as possible.
Replace your silicone diaphragm every 8-9 weeks. It's crucial to replace it frequently especially if you use your pump multiple times p
4.7
50 ratings
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Check the suction
Just what I needed suction was going down so once replaced back to greatness
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Irene · September 22, 2026
Good extra parts
S
Sabrina · May 31, 2026
Recommend replacement
Great replacement product! My other flanges were too old and wasn’t working well anymore. Made my pumping experience much better.