Amazon.com: 2X One-Piece Breastshields, Valves, Membranes Compatible with Medela Pump Parts, Pump in Style, Lactina, Symphony, Swing; 24 mm Standard breastshields; Made by Maymom : Everything Else
10 Pieces Practical Aquarium Air Pump Rubber Diaphragm Fish Tank Air Pump | eBay
Breast Pump Kit for Medela Double Electric Pump in Style Pumps; 2 One-Piece Breastshields (M, 24 mm), 2 Valves, 4 Membranes [M001-2F2V4M-45R(盒裝)] - US$540.00 : Zen Cart!, The Art of E-commerce