Maymom 28mm Flange Duckbill Valve Compatible with Spectra S1 S2 Not Original Plus Pump Parts Replace Valves

CONTENTS: 2ct Large 28mm flanges and 2ct duckbill valves for Spectra S2, Spectra S1 and Spectra S2Plus breastpump. Made by Maymom. Not Original 28mm Spectra Flanges, Spectra Duckbill Valve. Maymom Pump Parts for Spectra pump, NOT Original Spectra Pump Parts. Made by Maymom, not by original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra. COMPATIBLE AND INTERCHANGEABLE with Spectra pump parts. Maymom pump parts perform the same suction power as OEM parts, Spectra S2 pump parts, Spectra S1Plus accessories. " MAYMOM FLANGE can work with Spectra wide-neck bottle (wide-mouth bottle), Avent bottle, and Maymom widemouth bottle. Available Flange sizes:13mm, 15mm, 17mm, 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 29mm, 30mm, 32mm. " MAYMOM DUCKBILL VALVES features "easier to plug in and remove", "durable quality" and "color options" BPA/DEHP FREE. FDA compliant for food contacts. Tested by independent labs for safety. Test report online available for reference. Products in retail pack sealed by manufacturer; NO problem with dishwasher top rack, water steam cleaning, boiling water or microwave-steam bags.