11 Best Breast Pump Flanges for Comfortable Milk Expression

Discover the best breast pump flange for ultimate comfort and efficiency, crafted to make your breastfeeding journey smooth and effortless.
BrandMy RatingPrice
Nursi Luna
Great Value Selection
9.2/10
Nursi Luna
Best for Comfort and Fit
9.0/10
Lotbill
Best for Compatibility with Popular Pumps
8.8/10
Maymom
Best for Stage-Adjustable Nipples
9.6/10
Nuliie
9.2/10

Best Breast Pump Flange

Navigating the world of breast pump flanges can feel like decoding a secret language, but finding the perfect fit is essential for a comfortable, efficient pumping experience. Whether you’re a new mom or a seasoned pro, the right flange can make all the difference in maximizing milk flow and minimizing discomfort. Dive into our curated guide to discover the best breast pump flange options tailored to your needs.

Great Value Selection: Nursi Luna Flange Inserts

Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Flange Sizing Kit Silicone Flange Insert, Breastfeeding Essentials Kit for New Moms
Highlights
Multiple size options
Comfortable silicone material
Wide pump compatibility

As a "Great Value Selection," it offers a comprehensive 10-pack with multiple sizes, making it both cost-effective and versatile for different nipple dimensions.

The soft, food-grade silicone ensures a cozy feel and safe pumping, while the variety of sizes (13mm to 21mm) helps you find the perfect fit for ultimate comfort. Compatibility with various 24mm wearable pumps makes it a hassle-free option.

Although distinguishing sizes can be tricky and cleaning takes a little extra effort, its durability and affordability make this set a stellar choice for many moms seeking comfort and convenience.

Be sure to also check out the best breast milk freezer bags for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nursi Luna Flange Inserts on Amazon

Best for Comfort and Fit: Nursi Luna Flange Kit

Flange Sizing Kit 3 in 1 Ultimate with 10PCS Flange Inserts 13/15/17/19/21mm, Nipple Ruler, Cleaning Brush, Silicone Flange Insert Kit for 24mm Most Pumps, Pumping Breastfeeding Essentials
Highlights
Enhances comfort
Fits multiple pump brands
Accurate sizing tool

The Nursi Luna Flange Sizing Kit 3 in 1 stands out as the best for comfort and fit.

Developed by an IBCLC, it emphasizes precise fitting with a nippler ruler and multiple size options—13, 15, 17, 19, and 21mm—ensuring moms can find their perfect match as their needs evolve.

Made from food-grade, BPA-free silicone, it's safe for both mom and baby, while fitting most pumps with 24mm shields.

With easy cleaning and a thoughtful design, this kit takes the guesswork out of pumping, making it a must-have for all new moms looking for a comfortable, customized experience.

Be sure to also check out the best breast milk collectors for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nursi Luna Flange Kit on Amazon

Best for Compatibility with Popular Pumps: LOTBILL

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
Highlights
Compatible with Major Pumps
Accurate Sizing Tool
Food-Grade Silicone

The LOTBILL flange insert is super versatile, fitting most wearable breast pumps like Momcozy, Spectra, and Medela — no fuss, no special adapters needed.

The included sizing tool is a game-changer, helping moms find the perfect fit without guesswork, which can turn frustrating fast.

Made from food-grade silicone, it’s gentle on delicate skin and easy to clean, ensuring safety and hygiene.

Plus, its snug fit helps boost efficiency while minimizing discomfort.

Overall, this insert makes pump sessions smoother, safer, and a lot more comfortable for busy moms on the go.

Be sure to also check out the best breast milk collector for more options! Also, here is the price history so you know exactly when to buy!

Price history for LOTBILL on Amazon

Best for Stage-Adjustable Nipples: Maymom Wide Neck Pump Parts

2X 17 mm Maymom Wide Neck Pump Parts Compatible with Spectra S1/S2 Pumps; Incl Wide Mouth Flanges; Not Original Spectra Flange; Replaces Spectra Shield (Two Small Flanges)
Highlights
Fits Spectra pumps well
Smaller and comfortable
Produced more milk

The Maymom widemouth flange shines as the best for stage-adjustable nipples thanks to its flexible and innovative design.

It easily adapts to different nipple shapes and stages, making pumping both more comfortable and efficient.

Its smaller size feels less bulky and provides a more natural fit, which has helped many moms produce more milk comfortably.

While it works well with Spectra pumps and specific bottles, just keep in mind it has limited compatibility with other brands and only offers one size.

Still, it's a top choice for moms needing versatility!

Be sure to also check out the best breast milk popsicle mold for more options! Also, here is the price history so you know exactly when to buy!

Price history for Maymom Wide Neck Pump Parts on Amazon

Nuliie

Nuliie 10PCS Flange Sizing Kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, Silicone Flange Insert for Momcozy/Spectra/Bellababy Breast Pump, Breastfeeding Essential Pumping Kit for Moms
Highlights
Multiple size options
Comfortable, soft silicone
Easy to clean & dishwasher safe

The Nuliie flange sizing kit offers multiple sizes in a soft, comfortable silicone that feels gentle on the skin.

This flexibility helps moms find the perfect fit, reducing discomfort and boosting milk flow naturally.

Plus, it’s super easy to clean—just pop it in the dishwasher, which saves time and effort.

The included nipple measurement ruler is a game-changer, ensuring you select the right size every time.

While it’s not compatible with larger shields, if you’re using 24mm wearable pumps, this kit is a must-have to maximize comfort and efficiency during pumping sessions.

Be sure to also check out the best breast milk alcohol test strips for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nuliie on Amazon

Maymom

Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Breastpump Not Original Spectra S2 Accessories Spectra Pump Parts Replace Spectra Duckbill Valve and Flange
Highlights
Compatible with Spectra pumps
Durable and easy to clean
Various sizes available

The Maymom flange and duckbill valves are compatible with Spectra pumps, offering equal suction power to OEM parts but at a more affordable price.

The durable quality and easy-to-plug-in design make for a hassle-free experience, while the multiple sizes ensure a custom fit for comfort and efficiency.

Plus, they’re BPA/DEHP free and dishwasher safe, giving peace of mind for busy parents.

While they aren’t original Spectra parts, their ease of use and versatility make them a solid choice for anyone looking to optimize their pumping routine without sacrificing quality.

Be sure to also check out the best colostrum collector for more options! Also, here is the price history so you know exactly when to buy!

Price history for Maymom on Amazon

Medela Breast Pump Flange

Medela Medela Breast Shields - PersonalFit Flex, 21mm Medela Breast Shield Shaped Around You for Comfortable and Efficient Pumping, Made Without BPA, Pack of 2 Breastshields, Clear, 21mm
Highlights
Comfortable, flexible design
Removes more milk
Multiple size options

The Medela PersonalFit Flex breast shields are a game-changer with their innovative Flex technology that adapts comfortably to your pumping style.

The 105-degree opening angle helps reduce pressure, making each session feel more natural and less cumbersome.

They also outperform traditional shields by removing 11.8% more milk per minute, helping busy moms optimize output effortlessly.

With a range of sizes, including a handy 30mm option, you can find your perfect fit without discomfort.

Plus, they're BPA-free and dishwasher safe — convenience at its best.

Be sure to also check out the best beach strollers for more options! Also, here is the price history so you know exactly when to buy!

Price history for Medela on Amazon

Nenesupply

Nenesupply 21mm 2 pc Flanges Compatible with Spectra S2 Spectra S1 9 Plus Breastpumps Replacement to Spectra Pump Parts and Spectra Flange. Compatible with Spectra S2 Parts and Spectra 21mm
Highlights
Compatible with Spectra pumps
BPA free material
Multiple sizes available

These Nenesupply flanges offer a great alternative for Spectra users seeking compatibility without breaking the bank.

Crafted from BPA-free, safe materials, they ensure peace of mind during pumping sessions.

The set includes two 21mm flanges, perfect for a comfortable fit, and can be used with Spectra S1, S2, and 9 Plus models—just note they’re not OEM parts, but they deliver similar suction power.

While limited to Spectra bottles, they’re easy to sanitize and come sealed for safety.

Overall, a cost-effective, versatile choice for moms looking for reliable flange options.

Be sure to also check out the best bras for elvie pump for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nenesupply on Amazon

Nuliie

Nuliie 10PCS Flange Sizing kit 13/15/17/19/21mm for 24mm Flange/Shield of Most Pumps, BPA-Free Flange Inserts, Compatible with Momcozy/Elvie/Spectra/Bellababy/TSRETE/Nuliie Breast Pumps
Highlights
Wide compatibility
Enhances milk flow
Easy to clean

The Nuliie flange sizing kit offers exceptional versatility, fitting most 24mm wearable pumps with ease.

The soft, skin-friendly silicone makes pumping comfortable and reduces discomfort, encouraging better milk flow.

Plus, its easy-to-clean design simplifies your postpartum routine—just pop it in the dishwasher!

The included nipple measurement tool ensures you find the perfect fit every time.

While it's not compatible with larger 27-28mm shields, its compatibility with a wide range of pumps makes it a must-have accessory.

For healthy, efficient, and comfortable pumping, this kit truly delivers.

Be sure to also check out the best infant pool float for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nuliie on Amazon

GOCROWEEN Breast Pump Flange

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
Highlights
Multiple size options
Easy to clean
Compatible with many brands

The GOCROWEEN Flange Inserts offer multiple size options, ensuring a snug, comfy fit tailored to your specific needs.

Made of food-grade silicone, they're ** BPA-free** and easy to clean—no fuss here!

These inserts are compatible with popular pumps like Medela, Spectra, and Momcozy, making them a versatile choice.

Just keep in mind, they may cause residue over time and aren’t suitable for 27mm shields.

Overall, a simple, reliable upgrade that enhances comfort and efficiency during your pumping sessions.

Be sure to also check out the best breathable nursing cover for more options! Also, here is the price history so you know exactly when to buy!

Price history for GOCROWEEN on Amazon

Lansinoh

Lansinoh Manual Breast Pump, Hand Pump with Comfortable Flange for Breastfeeding Essentials, Includes Baby Bottle for Feeding, 5oz
Highlights
Two-phase pumping for efficiency
Comfortable soft rims
Easy to clean

The Two-Phase Pumping system truly boosts efficiency, mimicking your baby's natural suckling with Let-down and Expression phases.

The ComfortFit Flanges with soft rims in 25mm and 30.5mm sizes ensure a snug, comfortable fit—no more pinched skin!

The ergonomic handle makes pumping less of a hand workout, perfect for those extended sessions.

It's straightforward to assemble and clean, with fewer parts that simplify your routine.

Plus, it's compatible with Lansinoh bottles and includes a natural, slow-flow nipple that supports your baby's natural feeding actions.

Overall, a compact, reliable, and thoughtfully designed choice for on-the-go pumping.

Be sure to also check out the best first time parent books for more options! Also, here is the price history so you know exactly when to buy!

Price history for Lansinoh on Amazon

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