Maymom 2nd Generation Pump Valves for Spectra S1, S2 and 9 Pumps and Philips Avent Comfort Electric Breast Pump; (4 pc) - Walmart.com
Amazon.com : Maymom Breast Pump Parts Compatible with Philips Avent Comfort Breastpump SCF332/334, One-Side; Incl. Flange, Valve, Tube, Massage Pad, Suction Membrane, Cap; Not Original Avent Pump Parts. : Baby
Philips Avent Multicolor Straw Cup 200 ML with Handle,AntiLeak Valve For9M+ Kids | eBay
Amazon.com : Nenesupply 4 pc Duckbill Valves Compatible with Medela and Avent Pumps Not Original Medela Pump Parts Work with Medela Pump in Style Medela Symphony Replace Medela Valve Membrane and Avent
Duckbills Suitable for speCtra S1/S2/9 & Philips AVENT Comfort Breastpumps, 4pc/pk [P005.2G-4D] - US$4.50 : Zen Cart!, The Art of E-commerce