Maymom Breast Pump Kit Compatible with Medela Advanced Style Pump; 2 Shields (One Piece, 25mm), 4 Valves, 6 Membrane and Tubes Can Replace Valve

Contains 4 valves, 6 membranes, 2 hoses and 2 one-piece railings, 25 mm; compatible with Medela Pump in Style pumps. Not compatible with FreeStyle, Swing Maxi, Sonata, Harmony, Pump in Style with Maxflow Pro Pro+. Comparable to Medela breast or Medela 24mm breast. Not Genuine Medela Pump Parts FDA Registered Medical Device (D192499); Meets US FDA Standards for Containers that come into contact with Class II Food and Medical Devices The products are controlled by the US FDA. Test reports are online for reference; Bottles are not included. You can use any Medela bottle or other standard size cheap bottles (e.g. Gerber Bottles, Playtex Bottle, Ameda Bottles) available at your local drug/grocery/dept stores. Maymom Has 10 years of experience in manufacturing high quality breast pump parts for branded pumps; 100% compatibility and satisfaction guaranteed!