27mm Flange Pump Parts for Momcozy S9/S10/S12 Silicone Pumps Replacement Accessories with 2pcs Duckbill Valves 5pcs Flanges1Wide Compatibility: Pump parts are designed for Momcozy S9/S10/S12, for TSRETE, for kmaier, for Luxlady, for HAUTURE, for eulumap, for Fisroa, for Goldeep, for Zybeauty, for PADRAM, for HAHOME, for Kompoll, for OMF, for Paruu, for LRKHFFD, for umeasy milk pumps. 2Replaceable Pump Parts: Ensure the efficient and reliable operation of your milk pump, and the kit includes 2pcs duckbill valve, 5pcs flanges (13mm /15mm / 17mm / 19mm / 21mm ), 1pc tee connector, 2pcs silicone diaphragm and 1pc 27mm cover. 3Easy to Clean: Replacement pump parts are made from reliable and safe materials and are designed for easy cleaning. Simply rinse them with water or use a bottle brush for thorough cleaning. 4Durable and Long lasting: With their quality construction, these replacement pump parts are built to last. They can withstand the demands of daily use and regular cleaning without losing their effectiveness. 5Note: The size of the flange is very important for comfortable and efficient pumping. Some mothers experience nipple swelling during milking, so it is important to observe the appearance of the nipple during suction. It is recommended that the milk pump flange insert be changed every 1 to 2 months for wearable milk pumps. Please choose the correct size flange.