1Wide Compatibility: Pump parts are designed compatible with Momcozy S9/S10/S12, compatible with TSRETE, compatible with kmaier, compatible with Luxlady, compatible with HAUTURE, compatible with eulumap, compatible with Fisroa, compatible with Goldeep, compatible with Zybeauty, compatible with PADRAM, compatible with HAHOME, compatible with Kompoll, compatible with OMF, compatible with Paruu, compatible with LRKHFFD, compatible with 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 compatible with easy cleaning. Simply rinse them with water or use a bottle brush compatible with 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 compatible with 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 compatible with wearable milk pumps. Please choose the correct size flange.