Fish Tanks & Supplies

Maymom Pump Parts Compatible with Spectra S2 S1, 20mm Flange Valve Tube Bottle Backflow Protector, Not Original Spectra S2 Replacement Pump Parts Duckbill Valve Bottle The incl. 20mm flanges are not suitable for all mothers. Please refer to the size guidance in the product listing before purchase. Kit Contents: 2 Flanges (20mm), 2 Duckbill Valves, 2 Backflow Protectors, 2 Tubes, and 2 Bottles with One-Piece Travel... Maymom Pump Parts Compatible with Spectra S2 S1, 20mm Flange Valve Tube Bottle Backflow Protector, Not Original Spectra S2 Replacement Pump Parts Duckbill Valve Bottle