To allow spectra wide-mouth flanges that come with spectra S1 pump, spectra S2 pump to use standard sized bottles (Medela bottles given out at the hospital, Ameda bottles).

This new version (3rd Generation) designed Jan....

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To allow spectra wide-mouth flanges that come with spectra S1 pump, spectra S2 pump to use standard sized bottles (Medela bottles given out at the hospital, Ameda bottles).

This new version (3rd Generation) designed Jan. 2019 features several improvements based on customers' feedback on the older design.

  • The height is taller to mach newer version of spectra flange
  • A anti-slip O-ring is used to reduce chance of unwanted unscrew of the bottle and to prevent leaking.
  • No leak
  • No unscrewed bottle

    About Maymom
    Maymom is a company you can trust. It invents and develops new products and tools for mothers of unique needs. It offers a full line of Spectra compatible pump parts including flanges, bottles, backflow protectors, flange adapters, flange inserts, duckbills, valves, membranes, power supplies like car charger, power bank and tubing.
    The flanges are of sizes 13 mm up to 32 mm in 2mm increments. Maymom makes flange sizes that other major companies are not willing to make. Maymom cares for each mom.
    Buying Maymom's product is satisfaction guaranteed. Contact the seller or Maymom for after sale service. You will not be disappointed.

    • 3rd Generation Genuine Maymom bottle size changer includes an anti-leaking & anti slip o-ring; designed to avoid leaking when a mother bent over during pumping, reduced chance for a unscrewed bottle, no interfering with the duckbill, and easier screw on to both the widemouth flanges and the standard-sized bottles
    • Compatible with Avent and Spectra S1 and Spectra S2 flanges to use with standard sized bottles like medela bottles, ameda bottles and original Dr. Brown Bottles (note will not fit wide mouth Dr. brown bottle) to replace the wide mouth spectra bottles.
    • We recommend that you use a bottle-stand (such as ASIN B00PRPLRYQ) as well to reduce the tipping-over of the bottle.
    • BPA free, dishwasher safe; FDA compliant for food contacts. Every batch is tested for safety. Test reports are online on Maymom's website for your reference.
    • From a brand you can trust - Maymom and USA based customer service.

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