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Replace your old, broken or lost Motif Duo Diaphragm. The Motif Duo Double Electric Breast Pump requires the diaphragm part to operate.This purchase includes two Diaphragms.
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The diaphragm is the round, plastic pump part that goes on top of the bottle connector. This piece attaches the tubing to the milk storage container. The diaphragm creates a closed system breast pump by providing a barrier that prevents milk from getting into the tubing or the pump motor.