Can I use these for the zomee z2?

I don’t own the zomee but I have tried these with several different pumps and these inserts can pretty much fit universally into any 24mm flange.

I measured for a 17mm flange. According to the sizing chart I would order a 19mm. Is that correct?

That is what I did and ir fit very well. I can use them in my willow go and my momcozy s12 pro!

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Willow Breast Pump Sizing Insert | 19mm for 15mm-17mm Nipple Size | Improve Fit for Willow Wearable Breast Pump Flanges & Containers 24mm Only

Product ID: 428185457

Details

Brand
Willow
Is Dishwasher Safe
No
Manufacturer
Willow
Material
Silicone
Material Type Free
Lead Free
Operation Mode
Manual

🧩Flexible silicone for perfect fit

🧴19mm precision sizing insert

♻️Reusable & easy to clean

Description

🍼 Perfect fit, perfect pump—because your comfort deserves the best!

SEAMLESS COMPATIBILITY - Works exclusively with Willow 24mm flanges for a flawless, spill-proof pumping experience.
HASSLE FREE MAINTENANCE - Reusable and easy to clean, keeping your pump hygienic and ready to go.
SOFT FLEXIBLE SILICONE - Gentle material adapts to your shape, ensuring comfort during every pump session.
TRUSTED BY THOUSANDS OF MOMS - Backed by 724+ reviews with a 4.6-star rating—don’t settle for less than the original.
TAILORED FIT FOR ULTIMATE COMFORT - Precisely designed 19mm insert enhances fit for smaller nipples, boosting pumping efficiency.

The Willow Breast Pump Sizing Insert (19mm) is a flexible silicone accessory designed to improve fit and comfort for users with smaller nipples when using the Willow Wearable Breast Pump’s 24mm flanges. It is reusable, easy to clean, and compatible exclusively with Willow’s Generations 2 and 3 pumps, ensuring a spill-proof, wearable pumping experience trusted by hundreds of mothers.

Specifications

ASIN	B09B7WMGGQ
Brand	Willow
Country of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (1,398)
Is the item dishwasher safe?	No
Manufacturer	Willow
Manufacturer Part Number	SZ1964
Material	Silicone
Material Type Free	Lead Free
Model number	SZ1964
Operation Mode	Manual
Product Style	Compact
Size	19mm
Special Features	Wearable
UPC	858298006613

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