One-Piece Breastshield (21 mm internal diameter, specially designed for Sepctra Pumps) , 1 Valve, 1 Membranes; Compatible with Spectra pumps S1, S2, M1, Spectra 9 having the back-flow protector.Connects to Standard-sized bottles (All Medela, Ameda Bottles and small version of Spectra, Playtex, Gerber, Dr Brown bottles etc; But NOT wide-neckbottles like Avent or Wide version of Spectra). Please purchase/Use a Standard-Wide neck converter for Wide mouth bottles.US FDA registered medical device (No. D192499); Complies with US FDA and EUstandards for containers that contact food and class II medical device; Test reports are online for your reference;Retail poly-bag packed; sealed by the manufacturer.Made of Bisphenol-A (BPA)/DEHP-free material and all components are steam safe for sterilization.
