S9 or S12 or S9 Pro or S12 Pro Pump Parts Replacement - diaphragms and valves are suitable for use with for S9 or S12 or S9 Pro or S12 Pro breast pumps, for electric breast pump -free, made of food grade silicone,safe,soft and odorless. The pump parts are perfectly meet your requirement when using a wearable breast pump Easy washing, you can wash pump parts after each use with warm soapy water and rinse well. Can be washed with steam,boiling water or microwave steam bag The diaphragm is used to help the breast pump maintain the seal to avoid milk leakage. The valve can be used to drain milk to the bottom of the container The breast pump parts can be replaced every 2-3 months or so according to the installation and suction status of the breast pump Color: Transparent Material: Silicone Package Contents: 8 x Valve 4 x Diaphragm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.