Will these work with medela / spectra 24mm flanges? what about the 24mm elvie?

Haven’t tried the 17 mm but the 19 mm definitely worked for the Elvie. The instructions read to insert into the 24 mm flange which resulted in no suction. Tried inserting into the 21 mm flange and the suction was great. Definitely worked much better.

Which works better, the flange with the 17mm inserts or the 17mm flanges? I’m wondering if the softer material might get better results?

Freemie doesnt sell 17mm flanges. Their default is 25 mm. Maymom sells 17mm flanges. I had both. Liked both. Same results. Choose whichever is more convenient for you. I ended up loving the Freemie cups with the Maymom inserts.

Can I insert in a 19mm cups or it’s only for 24mm cups?

They will not fit in a 19mm. They’re made for 25mm, but will fit into a 24mm...however, when inserted into a 24mm flange they stick out a bit but it doesn’t affect suction.

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Maymom Flange Inserts 17 mm for Freemie 25 mm Collection Cup. 2pc/Each (semi Transparent)

Maymom Flange Inserts 17 mm for Freemie 25 mm Collection Cup. 2pc/Each (semi Transparent)

Product ID: 341888027

Details

Age Range (Description)
Adult
Brand
Maymom
Manufacturer
Maymom
Material
Silicone
Number of Items
1
Size
2 Count (Pack

🔄Wide multi-brand compatibility

🔧Precision 17mm nipple tunnel fit

🛡️BPA & DEHP free safe materials

Description

🔧 Perfect fit, pure comfort — pump smarter, not harder!

CUSTOM COMFORT FIT - Reduces nipple tunnel size from 25mm to 17mm for a tailored pumping experience.
SAFE SUSTAINABLE - Crafted from BPA-free silicone and PP, ensuring toxin-free use for health-conscious moms.
LIGHTWEIGHT DISCREET - Compact 18g inserts maintain pump portability without added bulk or noise.
DURABLE EASY TO CLEAN - Silicone construction offers long-lasting durability and effortless maintenance.
UNIVERSAL COMPATIBILITY - Works seamlessly with Freemie 25mm cups and multiple leading pump brands for versatile use.

Maymom Flange Inserts are precision-engineered 17mm silicone adapters designed to reduce the nipple tunnel size of Freemie 25mm collection cups. Made from BPA- and DEHP-free materials, these lightweight inserts offer broad compatibility with multiple popular breast pump brands, delivering a safer, more comfortable, and customizable pumping experience for modern moms.

Specifications

ASIN	B07DG33DPW
Age Range Description	Adult
Brand	Maymom
Customer Reviews	4.6 4.6 out of 5 stars (903)
Manufacturer	Maymom
Manufacturer Part Number	F012-i17x2
Material	Silicone
Model Number	F012-i17x2
Number of Items	1
Size	2 Count (Pack of 1)

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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