NENESUPPLY PUMP PARTS Compatible with PUMP IN STYLE MAXFLOW Breastpump Include 2 19mm Flanges 2 Connectors 2 Membranes 2 Valves and 1 Tubing set MADE BY NENESUPPLY Compatible with Medela Personalfit Flex connector and flanges DOES NOT WORK WITH TRADITIONAL PUMP IN STYLE ADVANCED WORK WITH PUMP IN STYLE MAXFLOW ONLY Verify product photos before purchasing SAME SUCTION AS ORIGINAL PUMP PARTS Compatible with Medela Flanges PersonalFit Flanges PersonalFit Flex Flanges and Tubing AVAILABLE FLANGE SIZES 17 19 21 24 27mm COMPATIBLE WITH MEDELA BOTTLES and MOST NARROWMOUTH BOTTLES SEETHROUGH CONNECTOR You can see expressed milk coming out of the valve BPA and DEHP Free Comply with EU and USA regulations for materials that contact food