1 neck flange (20, 24, 28, or 32mm) 1 back flow protector 1 duckbill valve 1 tube Compatible with Spectra S2, S1, S9, M1 Breast Pumps
Features :
1 neck flange (20, 24, 28, or 32mm) 1 back flow protector 1 duckbill valve 1 tube Compatible with Spectra S2, S1, S9, M1 Breast Pumps
Features :