Best Compatible Flanges for Comfort & Efficiency

Looking for the best compatible flanges?
Discover our top-rated options that ensure comfort, efficiency, and perfect fit for your breast pump.

Finding the right flange for your breast pump can make a big difference. It can turn a painful session into a comfortable one. We’re here to help you find the best fit.

Compatible flanges come in many sizes and shapes. They work with popular pump brands like Medela, Spectra, and Momcozy. Choosing the right one can boost your pumping power.

Ready to upgrade your pumping experience? Let’s explore the top compatible flanges that fit your needs. You’ll find comfort, efficiency, and ease in every pick.

List of Top 10 Compatible Flanges

Image Title Best For Price
Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange

This product is perfect for breastfeeding moms who use Spectra S1, S2, or 9 Plus pumps. It’s great for those needing smaller 19mm flanges or replacement duckbill valves that work just as well as the originals.

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Flange Inserts 13/15/17/19/21mm 5pcs,Suitable for Medela,Spectra 24mm Shields/Flanges,Compatible with Momcozy S12 Pro/S9 Pro/S9/S12 Wearable Breast Pump,Reduce 24mm Tunnel Down to Correct Size Flange Inserts 13/15/17/19/21mm 5pcs,Suitable for Medela,Spectra 24mm Shields/Flanges,Compatible with Momcozy S12 Pro/S9 Pro/S9/S12 Wearable Breast Pump,Reduce 24mm Tunnel Down to Correct Size

This 5-piece pack of GOCROWEEN Flange Inserts is perfect for nursing mothers looking to optimize their breast pump fit. They are designed to reduce 24mm breast shields down to the correct nipple tunnel size, ensuring comfort and efficient milk expression.

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Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 17 mm, 4PCS Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 17 mm, 4PCS

This product is perfect for breastfeeding moms who need to adjust the size of their breast pump flanges. If your current 24mm shields feel too big, these 17mm inserts will help you pump more comfortably and efficiently.

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Maymom 18mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve Maymom 18mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

This product is perfect for breastfeeding moms who use Spectra S1, S2, or 9 Plus pumps. It’s easy to use, safe, and works just like the original parts.

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Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Wearable Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Wearable Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size

This product is perfect for breastfeeding moms who want a comfortable and efficient pumping experience. It’s ideal for those using wearable breast pumps and need the right flange size to avoid pain and save time.

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PumpMom-us 19mm Soft Rim Flanges Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories, Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and 19 Flange PumpMom-us 19mm Soft Rim Flanges Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories, Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and 19 Flange

This product is perfect for moms using Spectra S2, S1, or 9 Plus breast pumps who need 19mm flanges for a comfortable fit and efficient suction. The soft-rimmed design, wide-angle opening, and safe, BPA-free materials make it ideal for gentle, effective pumping.

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Nenesupply 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 19mm Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex Nenesupply 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 19mm Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex

This product is perfect for breastfeeding moms who use Medela breast pumps and want comfortable, compatible flanges. It’s great for those seeking a soft, flexible fit that works with their pump and hand-free bras.

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Nenesupply 15mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 17mm Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex Connector Nenesupply 15mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 17mm Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex Connector

This product is perfect for breastfeeding moms who use Medela breast pumps and are looking for a more comfortable and natural fit. The soft, flexible rims and oval shape gently hug your breast, allowing you to pump in any position for a pressure-free experience.

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Maymom 15mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve Maymom 15mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

Perfect for moms using Spectra S1, S2, or 9 Plus breast pumps. Need affordable, safe replacements with same suction power and multiple flange sizes.

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Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 19 mm, 4PCS Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 19 mm, 4PCS

These 19mm flange inserts are perfect for breastfeeding mothers who use 24mm breast pump shields and need a smaller nipple tunnel size. They offer a comfortable and efficient pumping experience by ensuring the correct fit for their nipples.

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Detailed Reviews

Finding the best compatible flanges can transform your pumping journey. Our guide blends expert analysis and real-world feedback to spotlight top picks for comfort, fit, and durability. Every product is vetted for strong suction, easy cleaning, and safe materials—no guesswork needed. Whether you’re a first-time mom or upgrading your gear, trust our list to deliver perfect fit and painless pumping.

1. Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange

Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange

Get ready to boost your pumping power with the Maymom 19mm Flange and Duckbill Valve set! This pack is your perfect companion for Spectra S1 and S2 breastpumps, offering a great alternative to original parts.

These Maymom parts are designed to work seamlessly with your Spectra pump. They deliver strong suction just like the original parts. You’ll find them easy to use and built to last.

The duckbill valves are a breeze to attach and detach. The flanges are versatile, fitting Spectra, Avent, and Maymom bottles. Plus, they are safe and clean, being BPA/DEHP free and suitable for various cleaning methods.

Pros Cons
  • Perfect fit for Spectra S1 and S2.
  • Strong suction like original parts.
  • Easy to clean and use.
  • Safe materials, BPA/DEHP free.
  • Many sizes to choose from.
  • Not original Spectra parts, may void pump warranty.
  • Limited color options for duckbill valves.
  • No affiliation with Spectra, not OEM-certified.

Perfect For:

This product is perfect for breastfeeding moms who use Spectra S1, S2, or 9 Plus pumps. It’s great for those needing smaller 19mm flanges or replacement duckbill valves that work just as well as the originals.

Ready to Purchase?

2. Flange Inserts 13/15/17/19/21mm 5pcs,Suitable for Medela,Spectra 24mm Shields/Flanges,Compatible with Momcozy S12 Pro/S9 Pro/S9/S12 Wearable Breast Pump,Reduce 24mm Tunnel Down to Correct Size

Flange Inserts 13/15/17/19/21mm 5pcs,Suitable for Medela,Spectra 24mm Shields/Flanges,Compatible with Momcozy S12 Pro/S9 Pro/S9/S12 Wearable Breast Pump,Reduce 24mm Tunnel Down to Correct Size

Find the perfect fit for your breast pump with GOCROWEEN Flange Inserts. These 5pcs inserts come in sizes 13/15/17/19/21mm, ensuring comfort and efficiency while pumping.

Works with Medela, Spectra, and Momcozy pumps. Easy to use and compatible with many brands.

Made from BPA-free, food-grade silicone, these inserts are safe and easy to clean. Replace every 1-2 months for best results.

Pros Cons
  • Compatible with Medela, Spectra, and Momcozy pumps
  • Multiple sizes (13-21mm) ensure proper fit
  • Made of BPA-free, food-grade silicone
  • Easy to clean and maintain hygiene
  • Reduces discomfort and improves milk flow
  • Not for 27mm shields.
  • Replace often for best results.

Perfect For:

This 5-piece pack of GOCROWEEN Flange Inserts is perfect for nursing mothers looking to optimize their breast pump fit. They are designed to reduce 24mm breast shields down to the correct nipple tunnel size, ensuring comfort and efficient milk expression.

Ready to Purchase?

3. Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 17 mm, 4PCS

Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 17 mm, 4PCS

Suniceme Flange Inserts are breast pump accessories that fit most 24mm shields/flanges. They reduce the nipple tunnel size from 24mm to 17mm, making pumping more comfortable. These inserts are compatible with popular brands like Medela, Spectra, and Momcozy.

Made from BPA-free, food-grade silicone, these inserts are safe for moms and babies. They can be sanitized with steam or boiling water and cleaned with warm soapy water. Replace them every 1 to 2 months for best results.

Correct size flange inserts help moms pump more comfortably and efficiently. Nipple swelling during pumping is normal, so observe your nipples while using them. These inserts are a great solution for a better pumping experience.

Pros Cons
  • Fits most 24mm flanges for a snug, secure fit.
  • Reduces nipple discomfort during pumping sessions.
  • Made of safe, BPA-free silicone for health and durability.
  • Easy to clean and sanitize with steam or boiling water.
  • Improves milk flow with proper flange sizing.
  • May not fit all 24mm shields.
  • Requires careful observation during pumping.
  • Needs regular replacement for best use.

Perfect For:

This product is perfect for breastfeeding moms who need to adjust the size of their breast pump flanges. If your current 24mm shields feel too big, these 17mm inserts will help you pump more comfortably and efficiently.

Ready to Purchase?

4. Maymom 18mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

Maymom 18mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

Get great value with the Maymom 18mm Flange and Duckbill Valve set, designed to work seamlessly with your Spectra S1, S2, and 9 Plus breastpumps. These parts offer a reliable alternative to original Spectra pump parts, ensuring you can continue your pumping journey without interruption.

These Maymom parts are made for easy use. They offer durable quality and come in various sizes. You can also use them with different bottles.

Pros Cons
  • Compatible with Spectra S1, S2, and 9 Plus pumps.
  • Durable duckbill valves, easy to use and remove.
  • BPA-free and FDA-compliant for safe pumping.
  • Multiple flange sizes fit various bottle types.
  • Not original Spectra pump parts.
  • Maymom brand, not Spectra.
  • Maymom flange may not fit all bottles.

Perfect For:

This product is perfect for breastfeeding moms who use Spectra S1, S2, or 9 Plus pumps. It’s easy to use, safe, and works just like the original parts.

Ready to Purchase?

5. Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Wearable Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size

Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Wearable Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size

Tired of uncomfortable pumping? These flange inserts are your secret weapon for a better breast pump experience. They easily reduce your 24mm flange to the perfect size, like 13mm, 15mm, 17mm, 19mm, or 21mm. Get ready for pain-free, efficient milk expression!

Made from food-grade silicone, these inserts are gentle on your skin and super easy to clean. Save time and money by finding your ideal fit.

Pros Cons
  • Works with most 24mm breast pumps (Momcozy, Medela, Spectra)
  • Ensures proper fit to reduce pain and improve milk flow
  • BPA-free silicone ensures gentle, skin-friendly comfort
  • Easy to clean with included brush and steam sterilization
  • Boosts efficiency and comfort with accurate sizing
  • Not for 27/28mm shields, limiting compatibility with some pumps.
  • Replace every 2 months, adding ongoing cost for users.
  • Multiple sizes needed, may require trial to find the best fit.

Perfect For:

This product is perfect for breastfeeding moms who want a comfortable and efficient pumping experience. It’s ideal for those using wearable breast pumps and need the right flange size to avoid pain and save time.

Ready to Purchase?

6. PumpMom-us 19mm Soft Rim Flanges Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories, Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and 19 Flange

PumpMom-us 19mm Soft Rim Flanges Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories, Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and 19 Flange

Get better milk flow with PumpMom 19mm flanges. They fit Spectra S2, S1, and 9 Plus pumps perfectly. Enjoy comfortable pumping with their soft rims.

These BPA-free shields are made from safe, food-grade materials. Upgrade your pumping experience today!

Pros Cons
  • Perfect fit for Spectra pumps.
  • Comfy soft rim for easy pumping.
  • Better suction with oval shape.
  • Safe, food-grade materials.
  • Not original Spectra parts, may differ in quality.
  • Limited size (19mm only), not suitable for all users.
  • No warranty or guarantee from Spectra.

Perfect For:

This product is perfect for moms using Spectra S2, S1, or 9 Plus breast pumps who need 19mm flanges for a comfortable fit and efficient suction. The soft-rimmed design, wide-angle opening, and safe, BPA-free materials make it ideal for gentle, effective pumping.

Ready to Purchase?

7. Nenesupply 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 19mm Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex

Nenesupply 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 19mm Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex

Nenesupply 19mm Oval Flanges work with Medela breast pump parts. They fit many Medela pumps, like Pump in Style and Symphony. These are not original Medela parts.

The soft, flexible rims fit your breast shape. They have a built-in extension for comfort. No rubbing against your skin.

The oval shape lets you rotate 360 degrees. Choose the most comfortable position. They are BPA and DEHP free, safe for your baby.

Pros Cons
  • Comfortable fit, gentle on skin.
  • Oval shape for natural positioning.
  • Wider angle for pressure-free pumping.
  • Easy to clean, dishwasher safe.
  • Not original Medela parts.
  • Oval shape might not fit all.

Perfect For:

This product is perfect for breastfeeding moms who use Medela breast pumps and want comfortable, compatible flanges. It’s great for those seeking a soft, flexible fit that works with their pump and hand-free bras.

Ready to Purchase?

8. Nenesupply 15mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 17mm Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex Connector

Nenesupply 15mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 17mm Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex Connector

Say hello to comfort and efficiency with Nenesupply’s 15mm Oval Flanges, designed to make your pumping experience a dream! These soft and flexible flanges are here to revolutionize your breast pump routine.

They fit your breast shape naturally. Enjoy a pressure-free seal with a wider angle. Pumping just got way easier.

These oval-shaped flanges offer 360-degree rotation for your ultimate comfort. They are easy to clean and dishwasher safe. Get ready for a smoother, gentler pumping session!

Pros Cons
  • Comfortable fit, gentle on your skin.
  • Oval shape for natural positioning.
  • Wider angle for pressure-free pumping.
  • Easy to clean, dishwasher safe.
  • Safe for your baby, BPA and DEHP free.
  • Not Medela-made, so fit may vary with your pump.
  • Limited size options; only 4 sizes available.
  • Third-party product, not an original Medela part.

Perfect For:

This product is perfect for breastfeeding moms who use Medela breast pumps and are looking for a more comfortable and natural fit. The soft, flexible rims and oval shape gently hug your breast, allowing you to pump in any position for a pressure-free experience.

Ready to Purchase?

9. Maymom 15mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

Maymom 15mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve

Get ready to pump with Maymom’s 15mm Flange and Duckbill Valve set! This fantastic set is designed to work with your Spectra S1, Spectra S2, and Spectra 9 Plus breastpumps. You’ll get two 15mm flanges and two duckbill valves to keep you going.

These parts are made by Maymom and are fully compatible with your Spectra pump. They provide the same great suction you expect.

Enjoy durable quality and easy-to-use parts. These flanges also fit Spectra, Avent, and Maymom wide-neck bottles. Plus, they are BPA/DEHP free and safe for all cleaning methods.

Pros Cons
  • Compatible with Spectra S1, S2, and 9 Plus pumps for seamless use.
  • Matches original suction power without sacrificing performance.
  • Duckbill valves are easy to install, durable, and come in colors.
  • BPA/DEHP-free materials safe for boiling, steaming, or dishwashing.
  • Flange sizes from 13-32mm fit diverse breast shapes comfortably.
  • Not original Spectra parts.
  • Maymom brand, not Spectra.

Perfect For:

Perfect for moms using Spectra S1, S2, or 9 Plus breast pumps. Need affordable, safe replacements with same suction power and multiple flange sizes.

Ready to Purchase?

10. Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 19 mm, 4PCS

Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges, Reduce 24mm Nipple Tunnel Down to 19 mm, 4PCS

Transform your pumping experience with these 19mm flange inserts. They are designed to perfectly fit most 24mm breast pump shields. Get ready for more comfort and efficiency!

These inserts are BPA-free and made from safe, food-grade silicone. You can easily clean and sanitize them for continued use.

Find your ideal pumping fit and enjoy a more comfortable session. These inserts are a great solution for a better pumping journey.

Pros Cons
  • Compatible with major breast pump brands like Medela, Spectra, Elvie, and Bellababy.
  • Reduces 24mm flange size to 19mm for a better, more comfortable fit.
  • BPA-free food-grade silicone ensures safety for moms and babies.
  • Easy to clean and sanitize with steam or boiling water.
  • Improves pumping comfort and efficiency for better milk flow.
  • Not compatible with 27mm shields despite wide brand support.
  • May cause discomfort if nipples swell during pumping sessions.
  • Frequent replacement needed every 1-2 months for hygiene.

Perfect For:

These 19mm flange inserts are perfect for breastfeeding mothers who use 24mm breast pump shields and need a smaller nipple tunnel size. They offer a comfortable and efficient pumping experience by ensuring the correct fit for their nipples.

Ready to Purchase?

Buying Guide

Finding the right flange can make pumping comfortable and efficient. The perfect fit boosts milk flow and reduces pain. Let’s explore how to choose the best compatible flanges for your needs.

Factors to Consider When Buying Compatible Flanges:
Size: Choose a flange size that fits your nipple diameter. Too small or too large can cause discomfort or reduce efficiency.
Compatibility: Ensure the flange works with your breast pump brand, like Medela, Spectra, or Momcozy.
Material: Look for BPA-free, food-grade silicone for safety and easy cleaning.
Shape: Oval flanges offer flexibility and comfort, while round ones are standard. Pick what suits your needs.
Ease of Use: Opt for flanges that are easy to attach, detach, and clean for a hassle-free experience.
Durability: Choose high-quality materials that last longer and withstand frequent use.
Price: Compare prices to find a balance between quality and affordability.
Reviews: Check user reviews to see how others rate comfort, efficiency, and compatibility.

With these tips, you’ll find the perfect flange to upgrade your pumping experience!