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From the brand



Maymom One-piece Flange
Maymom Detachable Shield
Maymom Base Connector
Maymom Flange Insert
Maymom Duckbill Valve


Maymom cares for each mom
Maymom always cares about mothers’ needs on the path of breastfeeding. For years, we hear mothers’ voice for customized, comfortable and easy-to-use tools.
Maymom makes a wide range of aftermarket pump parts including flange, tubing, duckbill valve, backflow protector, collection bottle, milk storage bag adapter, and various kinds of adapters to bridge different systems of name brand breastpumps.
Parcel Dimensions : 15.9 x 10.59 x 8.61 cm; 68 g
Date First Available : Nov. 15 2022
Manufacturer : Maymom
ASIN : B0BL116P5H
Item model number : S012W-F20Dx2
CONTENTS: 2ct 20mm flanges and 2ct duckbill valves compatible with Spectra S2, Spectra S1 and Spectra 9 Plus breastpump. Made by Maymom. Not Original Spectra Flanges, Spectra Duckbill Valve. Can use Maymom flange for Spectra pump or Maymom duckbill valve for Spectra pump parts. Made by Maymom, not by original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra.
COMPATIBLE AND INTERCHANGEABLE with Spectra pump parts. Maymom pump parts perform the same suction power as OEM parts, Spectra S2 pump parts, Spectra S1Plus accessories.
MAYMOM DUCKBILL VALVES features “easier to plug in and remove”, “durable quality” and “color options”
MAYMOM FLANGE can work with Spectra wide-neck bottle (wide-mouth bottle), Compatible with Avent bottle, and Maymom widemouth bottle. Available Flange sizes:13mm, 15mm, 17mm, 19mm, 21mm, 24mm, 25mm, 27mm, 28mm, 29mm, 30mm, 32mm.
BPA/DEHP FREE. FDA compliant for food contacts. Tested by independent labs for safety. Test report online available for reference. Products in retail pack sealed by manufacturer; NO problem with dishwasher top rack, water steam cleaning, boiling water or microwave-steam bags.

I use these with the spectra gold synergy pump because it only comes with a size 24mm flange. Fits the bottles for these pumps. I recommend getting a few to reduce washing cycles
We bought these for my wifeâs breast pump because the valves that come with the pump were too big in size. Highly recommend buying the correct size valves for you pump.
They are compatible with my spectra!
This product fits PERFECT with my Spectra. As an exclusively pumping mama, I knew I would be able to keep with the demand of washing my pump parts. While I do use the fridge hack to skip a cleaning here and there, I knew I was going to need a second set just for ease and peace of mind. These are the perfect solution.They are easy to assemble and clean, wash great in the dishwasher, and perfectly match the original Spectra parts.Must have for mamas!
I purchased a 20 mm flange size because 21 mm flange was too big. But as other people commented the sizing is the exact same and not actually smaller. It should be slightly smaller but I measured both and it was the same. Giving a two star because the product itself works if you have the right size.