The first time I tried these, my milk backed up above the valve because it wasn't opening. Had to stop and pinch them open. I then proceeded with my session but noticed less milk came out than usual. I ended up digging my old spectra valves out of the trash because these just didn't cut it for me as a replacement.
Nenesupply 21Mm Flange Replacement Kit Compatible With Spectra S2/S1 Breast Pumps, Including Ducksbill Valve, Backflow Protector, And Other S2 Accessories And Parts
39 Review
Upgrade Your Spectra Pump: Nenesupply Tubing - Compatible With Ameda And Avent - Replace Your Spectra Accessories
57 Review
Maymom 15Mm Flange Insert Compatible With Elvie Single/Double Electric, Elvie Stride Cup (24Mm), Compatible With Medela PersonalFit Flex Shield, Not Original Elvie Replacement Pump Parts
52 Review
Maymom Tubing Kit For Freemie Cups To Connect To Medela Freestyle Pump
38 Review
Delicious Katjes Kinder Licorice Cat-shaped Drops 200g Licorice Pieces: Value Pack of 3!
7 Review
Earth's Best Organic Sesame Street Toddler Crunchin' Crackers, Original Flavor, 5.3 oz Box (6-Pack)
8 Review
🍼 Organic Stage 2 Baby Food, Squash & Peas - Earth's Best, 3.5 oz Pouch (Pack of 12)
7 Review
Earth's Best Non-GMO Soy Plant Based Infant Powder Formula: Iron, Omega-3 DHA & 6 ARA, 21 oz – Comprehensive Nutrition for Infants
7 Review