
I have been using these bottles for a week now, and i have washed them multiple times and i have not experienced any leaks. And they fit my spectra flange well. I have not notice any issues. Would buy more in the future.

Maymom Wide-Mouth Milk Storage Collection Bottle With SureSeal Sealing Disk; Compatible With Spectra/Motif Luna/Ameda MYA/Bellababy Pumps. Can Replace Spectra S1 S2 Bottles, 6 Pc (4.7Oz/140ML, 6Pc)
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