【Perfectly Compatible】：The duckbill valves compatible with the Momcozy S12 pro/ momcozy S9 pro, TSRETE S12/Kmaier S12 Wearable Breast Pumps, Not original accessories, Made by IVARONAL
【Pumping Efficiency the Same as OEM】: The quality and design is the same original OEM replacement parts, the duckbill valves without gap on the top and silicone diaphragm are engineered to prevent air leaks and backflow, ensuring a strong, stable suction for more efficient pumping , these replacement accessories provide the equal same output as with original OEM
【Closed System Design】:Silicone duckbill valve designed to prevent back-flow of breast milk, help to drain breast milk to the bottom of container, no loss of suction. Diaphragm are produced strictly according to professional standards, the stronger suction draws out more milk
【Food Grade Silicone Material】: Breast pump replacement accessories are made of food grade silicone, durable, no leaking, BPA free, soft and odorless, skin-friendly for mommy and baby. soft comfortable material, Snug fit can comfort and efficient pumping
【Easy to Clean】: Washing duckbill valves after each use with warm soapy water and rinse well. Please use boiling water/steam, with a temperature of ≤100℃（212℉）for 5-10mins. Hard brushes is not recommended, please use finger tips instead
