Willow Flange Sizing Kit - Breast Pump Sizing Kit for Willow Go & Wave

$18.79List Price:: $24.99-25%

Unit price: $18.79 / count

Save $6.20

Price as of Aug 5, 2026, 5:28 AM UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Limit 5 per customer

In Stock

Seller:: Amazon.com

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• Experiment with 5 sets sizing inserts; Includes 2 each of 13mm, 15mm, 17mm, 19mm, and 21mm Inserts • Nipple Sizing Tool to easily find your fit; Connect with a Sizing Specialist for personalized guidance • Use with Willow Go, Willow Wave, Willow 360 or any pump; they’re compatible with almost all 24mm flanges • Pump Sizing 101 Guide with everything you need to know about maximizing comfort

Available from

Retailer	Condition	Shipping	Availability	Price
Other retailers
AmazonBest priceThis dealSold by Amazon.comPrice as of Aug 5, 2026, 5:28 AM UTC	New	—	In Stock	$24.99$18.79	View deal

Other retailers

AmazonBest priceThis dealSold by Amazon.com
$24.99$18.79
New · In Stock · Price as of Aug 5, 2026, 5:28 AM UTC
View deal

Price last checked: Aug 5, 2026. Prices may change — always confirm the final price on the retailer’s site.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

As an Amazon Associate, Grabbit earns from qualifying purchases. Learn more