Nenesupply Silicone Diaphragm for Spectra Backflow Protector Nenesupply Backflow Protector Long End Backflow Protector. Use on Spectra S2 Spectra S1...<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> 2 SILICONE DIAPHRAGMS for Spectra backflow protectors， Nenesupply backflow protector， and Nenesupply LONG END backflow protectors </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> THIS IS AFTERMARKET PART MADE BY NENESUPPLY. Use on SPECTRA S2， SPECTRA S1， SPECTRA 9 PLUS， and NENESUPPLY ONE-FOR-ALL PUMP KIT </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> OPTIMIZE PUMP PERFORMANCE. Replace silicone diaphragms regularly to optimize the performance of your breastpump </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> FDA REGISTERED MEDICAL DEVICE. Comply with EU Commission Regulation (EU) No 10/2011 for plastic materials that contact food. Tested by independent labs for safety. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> IN RETAIL PACK. MATERIALS DO NOT CONTAIN ANY BPA. Can be sanitized with boiling water or water steam. All items packaged in retail pack， sealed by manufacturer for best protection and hygiene. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21Qhtz4nQcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41xWYCK3EML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51faoP3JHVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51I38MMRrzL.jpg" noproxy>