Sizing Inserts (Set of 4) – Willow Pump Skip to main content

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NEW LAUNCH! Willow Go x Splashguard Milk Containers

Backup pump parts up to 15% off

Backup pump parts now up to 15% off

Sizing Inserts (Set of 4)

$79.98 $59.99
25% off
Sizing Inserts (Set of 4)
25% off
Sizing Inserts (Set of 4)

Sizing Inserts (Set of 4)

$79.98 $59.99
Find your perfect fit. Include set for four sizing inserts: 13mm, 15mm, 17mm and 19mm.

Bundle & Save

Mom-approved bundles for breast care, milk storage, and pumping on the go

Breast Milk Storage Essentials
5% off

Breast Milk Storage Essentials

Everything you need for smart, safe, and mess-free milk storage––whether you're keeping the refrigerator organized or pumping on the go.
$75.97 $72.17
Early Days Breastfeeding Bundle
15% off

Early Days Breastfeeding Bundle

Relieve discomfort or gently induce letdown - and safely store milk when you're done - with the two essentials that provide comfort and convenience in the early days and beyond.
$47.97 $40.77
Travel Cleaning Duo
10% off

Travel Cleaning Duo

Everything you need to clean and care for your pumps on-the-go.
$57.00 $51.30
Nursing Nipple Pain Kit
5% off

Nursing Nipple Pain Kit

Soothe sore, cracked, and irritated nipples with our bundle of healing essentials. Wear in-bra and feed with comfort!
$56.98 $54.13