Maymom Pump Parts Work with Spectra S2 Spectra S1, 24mm Flange Valve Tube Bottle Backflow Protector, Not Original Spectra S2 Accessories Spectra Duckbill Valve Spectra Bottle Spectra Flange (21mm)

Kit Contents: 2 Flanges (21mm), 2 Duckbill Valves, 2 Backflow Protectors, 2 Tubes, 2 Bottles (with One-Piece Travel Cap). Work with Spectra S2, Spectra S1, Spectra 9 Plus Breastpump. Nipples and Dome Caps are NOT included in this kit. All pump parts made by Maymom. Not Original Spectra S2 Accessories. Not Original Spectra S1 Accessories. Not Original Spectra Pump Parts. Compatible and interchangeable with Spectra pump parts. Same suction power as OEM parts. Replace Spectra Flanges, Spectra Duckbill Valves, Spectra Backflow Protectors, Spectra Tubings, Spectra Bottles (Wide Mouth). Multiple flange sizes available: 15mm, 17mm, 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 30mm, 32mm. The One-piece cap of Maymom bottle includes sealing ring for secure seal. NO waste of milkdrop. Design for travel and storage of formula or breast milk. It's also perfect to convert baby feeding bottle to snack container or tumbler for mommy. Material does NOT contain any BPA. Can be sanitized with water steam, boiling water or microwave-steam bags. Comply with FDA regulations for plastic materials that contact food.