FAQs

What do the diaphragm covers do, and do they need replacing along with the diaphragm?

The diaphragm cover helps secure the diaphragm in place over the main pump body. Together, the diaphragm and diaphragm cover form an airtight chamber that helps prevent milk, condensation, and airborne contaminants from traveling through the tubing and into the pump motor. The diaphragm cover does not necessarily need to be replaced every time you replace the diaphragm — replace it only if you notice visible damage.

Are these covers compatible with the W1 as well as the H1?

No. These diaphragm covers are designed specifically for the Mother’s Nature™ H1 and are not compatible with other pump models.

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