Works with the diaphragm to ensure proper suction when expressing. Compatible with our electric breast pumps except the Wearable Breast Pump. Sold as a pack of 4 or 8. 

Valves should be checked after each breast pump session, and should be replaced every 4-6 weeks. 

Health Protection & Hygiene: Once opened this product may not be returned. Your statutory rights are not affected.

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