S9/S12/S9 Pro/S12 Pro Pump Parts Replacement - Diaphragms and valves are compatible with S9/S12/S9 Pro/S12 Pro breast pumps, designed for use with electric breast pumps. Made of food-grade silicone, these parts are safe, soft, and odorless. The replacement parts ensure optimal performance 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 aids in directing milk flow into the collection container. It is recommended to replace these breast pump parts every 2-3 months, depending on usage and suction performance. Color: Transparent Material: Silicone Package Contents: 8 x Valve 4 x Diaphragm Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.