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Amazon.com: Medela PersonalFit Breast Shields, 2 Count of Small 21mm Breast Pump Flanges, Authentic Medela Spare Parts, Made Without BPA : Baby
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One-Piece Breastshield (19 mm, Extra Small) w/Valve, Membrane for Medela Breast Pumps (Pump in Style, Lactina, Symphony, Single Deluxe, Double Ease); Smaller Than Personalfit 21 mm; Made by Maymom - Walmart.com
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Amazon.com : 21 mm 2xOne-Piece Small Breastshield w/ Valve and Membrane for Medela Breast Pumps; Replacement to Medela PersonalFit 21 Breastshield and Personal Fit Connector; Made by Maymom : Breast Shells : Baby
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Amazon.com : Medela PersonalFit Breast Shields, Large (Pack of 2) 27mm Breast Pump Flanges, Authentic Medela Spare Parts, Made Without BPA : Breast Feeding Supplies : Baby
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