Nenesupply Generic Pump Parts for Spectra S2 Spectra S1 Spectra 9 Plus Breastpump Flange Valve Tubing Backflow Protector Not Original Spectra Parts...<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> NENESUPPLY AFTERMARKET PUMP PARTS FOR SPECTRA S2 SPECTRA S1 SPECTRA 9 PLUS BREASTPUMPS. Made by Nenesupply. Not Original Spectra Parts. Inc 2 Medium 24mm Flanges， 2 Valves， 2 Backflow Protectors， and 2 Tubing. The flanges need to connect with WIDE MOUTH bottles. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> AFTERMARKET PARTS MADE BY NENESUPPLY. 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. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> USED WITH WIDE-MOUTH BOTTLES. Use this kit with Spectra bottles， Avent bottles， and Nenesupply wide mouth bottles. DOES NOT work with OTHER WIDE NECK BOTTLES. CLOSED SYSTEM. No contact between milk and tubing. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> DIFFERENT FLANGE SIZE AVAILABLE: 21mm， 24mm， 27mm. Refer to size selection guide in product photo to choose the right size for you. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> IN RETAIL PACK. All parts can be sterilized with water steam or boiling water. Do not contain any BPA. Tested by independent labs for safety. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31gUpiQrNiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41r6VSht5VL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41vaZGPL7%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/416eTmR2YZL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31iXEvYnRxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51L5p8n0CLL.jpg" noproxy>