Maymom Pump Parts Compatible with Spectra S2 S1 9 Plus Breastpump, Flange (27mm) Valve Tubing Backflow Protector, Not Original Accessories

Maymom AFTERMARKET PUMP PARTS COMPATIBLE WITH SPECTRA S2 SPECTRA S1 SPECTRA 9 PLUS BREASTPUMPS. Made by Maymom. Not Original Spectra Parts. Incl 2 Flanges (27mm), 2 Valves, 2 Backflow Protectors and 2 Tubings. The flanges can ONLY connect to WIDE MOUTH bottles. IMPORTANT! Not a direct alternative to Spectra 28mm Flange: Maymom 27mm flange features a smoOTHER curvature and a longer, roomier flange tunnel to help reduce nipple pain caused by contact with the back of the flange. Due to design dIfferences, some customers report that our 27mm feels larger than Spectra 28mm. If you're seeking a smaller flange than Spectra 28mm, this product may NOT meet your expectations. Maymom also offers 25mm flange, which is smaller than Spectra 28mm and larger than 24mm. The 25mm flange is recommended for moms with a nipple diameter of 23-24mm after pumping. Please measure your nipple size before purchasing. A detailed explanation is provided in the product images. WORK WITH WIDE-MOUTH BOTTLES ONLY. Use this kit with Spectra bottles, Avent bottles, and Maymom wide mouth bottles. DOES NOT work with OTHER WIDE NECK BOTTLES. CLOSED SYSTEM. No contact between milk and tubing. DIFFERENT FLANGE SIZE AVAILABLE: 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 30mm, 32mm. Refer to size selection guide in product photo to choose the right size for you. IN RETAIL PACK. All parts can be cleaned with water steam or boiling water. Do not contain any BPA. Tested by independent labs. Test reports available for reference. AFTERMARKET PARTS MADE BY MAYMOM. INTERCHANGEABLE WITH SPECTRA PARTS. All parts are interchangeable with Spectra Pump Parts. Can be used with Spectra flange, Spectra backflow protector, Spectra valve, and Spectra tubing.