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Maymom Flange for Spectra with Valve & Membrane (Narrow-Neck), 1pc (9 sizes, 15-36mm)

Brand Maymom
S$0.00 (+10% OFF FOR VIP)
FREE NEXT DAY DELIVERY (order before 3 pm, Mon-Fri)

Maymom Flange for Spectra with Valve & Membrane (Narrow-Neck) is a 1 piece breastshield and connector for Spectra breast pumps to pump into standard/narrow-neck milk bottles. It contains a flange, a valve, membrane and a yellow flange adapter. This one-piece design makes for easier cleaning, less chance of losing suction, and less parts to bring when you are on the go.

  • Compatible with all Spectra pumps (S1/S2/M/9+/Dual Compact/Synergy Gold S) and older Spectra breastpumps (Dew 350, 360)
  • Connect the flange to the Spectra backflow protector using the yellow flange adapter (included)
  • Pumps into narrow/standard neck milk bottles ONLY (e.g. Medela, Pigeon, etc)
  • Also compatible with all Medela pumps (without yellow flange adapter) except Swing Maxi, FreeStyle, Harmony and Pump in Style
  • Made from BPA free PP material.
  • Steam safe, autoclaveable.
  • One piece design for easy cleaning.
  • US FDA compliance

Product contains: Breastshield x1, Valve x 1 (may be white or yellow), Membrane x 1, Flange Adaptor x 1

*The valve may be white, yellow or orange in colour. 


  • One-piece design; easy to clean, less piece to keep, and less chance for suction power loss.
  • All components are safe for steam sterilization, microwave sterilized or sterilized in boiling water.
  • Compatible with all Medela pumps except FreeStyle, Swing Maxi and Harmony.
  • US FDA registered medical device (No. D192499); Comply with US FDA standards for containers that contact food and class II medical device.
  • Standard sized 25 mm inner diameter is most comfortable for the majority of breast feeding moms. However, other sizes are available too.
  • Many other sizes to choose from (refer to dropdown selection for range of sizes)


Autoclave instructions:

To autoclave, place the flange in 121oC, 1 kg/cm2 (or 14.2 psi) for 15 minutes. Test reports done by independent lab show that Maymom flange does not change physically after the autoclave procedure, and it can still pass the FDA 21 CFR, 177.1520 specifications for polypropylene (FDA PP report).

Maymom Breastshield For SpeCtra


How to choose the right size of breastshields for you?

The inner diameter of the breastshield (B) should be 1-2 mm larger than the diameter of your nipple (N) AFTER a pumping session or 3-5 mm BEFORE a pumping session.  You should be able to see free movement of your nipple during pumping and there should be little or no suction of the areola into the tunnel of the breastshield.


When it comes to pumping comfort, every millimeter counts.  That is why we design a series of breastshields of small increment sizes. Maymom one-piece breastshields are available in many different sizes (refer to dropdown selection for range of available sizes) to fit the majority of breast pumping mothers.


How to measure the diameter your nipple?

Download the nipple caliper file, print it out, cut through the red line, fold along the green dots then you have made yourself a nipple diameter measuring tool!  See below for the finished ruler.

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Customer Questions
I just bought Spectra S1 but it comes with 28mm breastshield. Will I need to get anything else if I were to purchase this set with the 19mm breastshield?

No, you do not. Simply connect this flange and yellow adapter to the backflow protector included with your Spectra S1 pump. However, please note that this flange only pumps into narrow-neck bottles (e.g. Medela). If you intend to pump into wide-neck...

My diameter is 20cm, what size of flange should i get?

You need to measure the size of your nipple (mm) (not breast) after pumping, add 1-2mm, and that is the flange size you need.

Can this fit medela pump in style?

As Medela Pump in Style recently changed their tubing, it will no longer fit this flange.

Hi do u sell the yellow flange adaptor separately ?

Yes, you can buy them here. 

May i know where to get 25mm? I need a 25mm. Thanks

You may get Maymom Breastshield for Medela with Valve & Membrane, 1pk (10 sizes, 15-36mm) (click here). There is 25mm size. The flange is the same, although it does not come with the Spectra flange adaptor.  You can click notify when back...

hi im a bit confused here - is the size selection drop down menu referring to nipple diameter OR the breastshield size?

Like all breast shields, the sizing refers to nipple tunnel size in the breast shield.  You should measure your nipple size and add a few mm accordingly to find your size. The inner diameter of the breastshield should be 1-2 mm larger than the...

Hi. Is this compatible to real bubee?

No, it is only compatible with Spectra pumps and Medela pumps (without flange adaptor)

Hi I've forgotten what size flange I was using from Maymom and need to repurchase a replacement. May I know if there's any way to check the size on my existing Maymom flange?

You can check the nipple tunnel, some flanges have the size engraved there. Otherwise, we recommend you to re-size yourself. 

Can this product be Hv- sterilized?

Do you mean UV sterilised? This product has not been officially tested with UV sterilisers, you may like to try steam/boil sterilise if you are concerned.

I use the maymom ruler to measure and it is 28mm. May I know what is the flange size for maymom breast shield should I buy? It is connect with Spectra S1 and medela bottle.

Please see the following advise by Maymom: The inner diameter of the breastshield (B) should be 1-2 mm larger than the diameter of your nipple (N) AFTER a pumping session or 3-5 mm BEFORE a pumping session.  You should be able to see free movement...

Do you sell the yellow adapter on its own? I'm hoping to see the spectra with my medela flange and bottles

Yes, here it is: 

Hi, is this fit to unimom minuet?

This product is designed to fit Spectra breast pumps.

can this fit Spectra S1 pump or do I need an adapter?

Yes, it fits S1. You need the yellow adapter (show on image) to connect to your backflow protector. The yellow adapter is included in this product; the backflow protector is not, you have to use your own.

What is 22 insert? Which insert u referring to?

It is a 22mm flange insert. We currently do not carry it. For breastshield sizes 22mm & 28mm, a flange insert has to be purchased separately (not included in this product) (*22mm insert fits into 25mm flange and 28mm insert fits into 30mm flange...

Instead of using valve and membrane , is maymom/ spectra duckbill valve compatible?

Yes, you may use Maymom Breastpump Duckbill Valve for Spectra (4pk).

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