Maymom 21mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra 20mm Replace Pump Parts Spectra Flange Spectra Duckbill Valve
Thumbnail 1Thumbnail 2Thumbnail 3Thumbnail 4Thumbnail 5Thumbnail 6Thumbnail 7Thumbnail 8Thumbnail 9

Maymom 21mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra 20mm Replace Pump Parts Spectra Flange Spectra Duckbill Valve

4.7/5
Product ID: 193836008
Secure Transaction

Details

  • Brand
    Maymom
  • Flange Diameter
    21 Millimeters
  • Special Feature
    Closed System
  • Material
    Silicone
  • Included Components
    Breast Flange
📏21mm precision fit
🔄100% Spectra compatible
🧼BPA/DEHP free & FDA safe

Description

🚀 Upgrade your pump game with Maymom’s precision parts—because your comfort deserves the best!

  • SAFE HYGIENIC - BPA/DEHP free, FDA compliant, and lab-tested for your baby’s health and your peace of mind.
  • EFFORTLESS CLEANING - Dishwasher top rack safe and resistant to boiling, steam, and microwave sterilization methods.
  • PRECISION 21 MM FLANGE - Engineered for optimal suction and comfort with a universally compatible wide-neck design.
  • DURABLE DUCKBILL VALVES - Easy to install and remove with long-lasting, high-quality materials that maintain peak performance.
  • SEAMLESS SPECTRA COMPATIBILITY - Fits perfectly with Spectra S1, S2, and 9 Plus pumps for hassle-free replacement.

Maymom’s 21mm flange and duckbill valve set offers a precise, durable, and fully compatible replacement for Spectra S1, S2, and 9 Plus breast pumps. Crafted with BPA/DEHP-free, FDA-compliant materials, these parts ensure safe, hygienic use and easy maintenance, delivering OEM-level suction performance without the premium price.

Specifications

Product Dimensions5.51 x 3.54 x 3.15 inches
Item model numberS012W-FxxDx2
StyleFlange 21mm + Valves
Batteries requiredNo
Dishwasher safeNo
Item Weight2.85 ounces

Have a Question? See What Others Asked

will this work with bellababy?
Did anyone have trouble and feel like these ran big?
I used mine before realizing it’s the wrong flange size, should I still return them?
Does this flange work with the Kiinde system?

Reviews

4.7

All from verified purchases

L**N

Interchangeable with other spectra parts👍

I ordered these because my swelling had gone down and I needed to drop down a size, from the 24mm to the 21mm and it was too soon for insurance to send a new one. These did not disappoint. Interchangeable with all my other spectra parts. Tubing, flanges, valves, all good quality, worked well, durable and functional.

J**B

Works well

Good replacement part, the neck is a bit longer so you don't have to bend forward as much as the spectra flanges to have milk drop down.

E**O

Finally the Right Fit

Thank goodness for these! Finding the right flange size made a huge difference in comfort and output. These 17mm flanges were the perfect fit for me. I just wish I had figured it out sooner. A must if you're not getting the results you want with the standard sizes.

H**M

PERFECT FOR SPECTRA 2!

I have the Spectra 2 and it comes with size 24 which is just a little too big for me so I replaced them with the 21’s and they fit perfectly!

A**A

Work great with Spectra S1

These work great with my Spectra S1, haven’t noticed any difference from the Spectra parts. As other reviewers noted, they work well with the Phillips Avent bottles too. They’ve held up well to constant washing and sterilizing/drying in a bottle sterilizer. Didn’t notice at first, but if you look inside the flange, it says the size

A**N

Great for spectra!

Great additional set for my spectra pump

F**R

Good replacement or supplement for spectra pumps

A good replacement or supplemental part for the spectra pump series. The one complaint I do have is that the connection to the backflow protector is not as tight as my original spectra flange, but otherwise, it functions the same. I just have to make sure the connection is tight before starting to pump.

H**R

Great fit!

Work way better than inserts!

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Shop Global, Save with Desertcart
Value for Money
Competitive prices on a vast range of products
Shop Globally
Serving millions of shoppers across more than 100 countries
Enhanced Protection
Trusted payment options loved by worldwide shoppers
Customer Assurance
Trusted payment options loved by worldwide shoppers.
Desertcart App
Shop on the go, anytime, anywhere.
$58.85

Duties & taxes incl.

LEBANONstore
1
Free Shipping

with PRO Membership

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Maymom 21mm Flange And Duckbill Valve Compatible With Spectra S1 | Desertcart LEBANON