S9/S12/S9 Pro/S12 Pro Pump Parts Replacement - Diaphragms and valves are compatible with S9, S12, S9 Pro, and S12 Pro breast pumps for electric breast pump use. Made of food-grade silicone, these parts are safe, soft, and odorless. Designed to meet your needs when using a wearable breast pump. Easy to clean—wash the pump parts after each use with warm soapy water and rinse thoroughly. Compatible with steam sterilization, boiling water, or microwave steam bags. The diaphragm helps maintain a proper seal to prevent milk leakage. The valve assists in directing milk into the collection container. Replace breast pump parts every 2-3 months, or as needed based on performance and suction quality. Color: Transparent Material: Silicone Package Contents: 8 x Valve 4 x Diaphragm Note: Light reflection and display differences may cause slight variations between the product color in images and the actual item. Measurement tolerance: +/- 1-3 cm.