Willow Breast Milk Container Inserts | Replacement Set – Willow Pump Skip to main content

NEW LAUNCH! The future of manual pumps is here

This week only! Free 2-day shipping on 360 pump

25% off pumps with code PUMP25

NEW LAUNCH! The future of manual pumps is here

This week only! Free 2-day shipping on 360 pump

25% off pumps with code PUMP25

  • Offers
  • Blog
  • Insurance
  • FAQs

Willow Pump

  • Breast Pumps
    • Willow Go® Wearable Breast Pump
      HSA/FSA
      25% OFF

      Willow Go® Wearable Breast Pump

      Our bestselling pump — optimized for comfort and milk output, hospital-grade, and app-controlled. Ranked as #1 wearable breast pump by Babylist. Kit includes NEW Splashguard Containers and 21mm & 24mm flanges.

      from $179.99
      Unit price
      /per 
    • Willow 360® Wearable Breast Pump
      HSA/FSA
      25% OFF

      Willow 360® Wearable Breast Pump

      Willow 3.0 is now 360. 100% leak-proof, hospital-grade, app-controlled, and supported by 360 Care. Comes with 21mm inserts & 24mm flanges.

      $499.99
      Unit price
      /per 
    • Go Wearable Electric Pump
    • 360 Wearable Electric Pump
    • Wave Wearable Manual Pump
    • Backup Pump Parts
    • Willow Go vs. 360
    • Pump Insurance Coverage

    • Find Your Pump
    • Shop All Pumps
  • Pumping Accessories
    • Pumping Essentials
      • Wearable Manual Pump
      • Pump Carrying Case
      • Convertible Travel Backpack
      • Milk Storage
      • Travel Cleaning Kits
      • Kindred Bravely Pumping Bras
    • Pump Parts
      • Go Backup Parts
      • 360 Backup Parts & Milk Bags
      • Build Your Own Bundle
      • Shop All Accessories
    • Teal
      33% off

      Pump Anywhere Case

      Protect your pump on-the-go with our sleek, sturdy, and easy-to-clean carrying case.

      Regular price $59.99 $39.99
      Unit price
      /per 
      2 colors
  • Breastfeeding Needs
    • Hot & Cold Breast Therapy Packs
      New
      HSA/FSA

      Hot & Cold Breast Therapy Packs

      Soothe sore breasts and help promote output with temperature-changing gel packs that turn blue at room temperature, white when hot, and purple when cold.

      $19.99
      Unit price
      /per 
    • Soothing Silver Nursing Cups
      HSA/FSA

      Soothing Silver Nursing Cups

      Our nursing cups are anti-inflammatory, anti-microbial, and antifungal to relieve nipple pain.

      $43.99
      Unit price
      /per 
    • Nipple Care
    • Soreness
    • Milk Collection & Leaking
    • Supplements
    • Shop All Care
Shop Up to 40% Off
  • Shop By Need
    • Best Sellers
    • Milk Storage
    • Leaking & Soreness
    • Hospital Bag
    • Bundle & Save
    • Shop All Collections
0

Willow Pump

0
  • Breast Pumps
  • Pumping Accessories
  • Breastfeeding Needs
  • Breast Pumps
  • Go Wearable Electric Pump
  • 360 Wearable Electric Pump
  • Wave Wearable Manual Pump
  • Backup Pump Parts
  • Willow Go vs. 360
  • Pump Insurance Coverage

  • Find Your Pump
  • Shop All Pumps
  • Pumping Accessories
  • Pumping Essentials
  • Wearable Manual Pump
  • Pump Carrying Case
  • Convertible Travel Backpack
  • Milk Storage
  • Travel Cleaning Kits
  • Kindred Bravely Pumping Bras
  • Pump Parts
  • Go Backup Parts
  • 360 Backup Parts & Milk Bags
  • Build Your Own Bundle
  • Shop All Accessories
  • Breastfeeding Needs
  • Nipple Care
  • Soreness
  • Milk Collection & Leaking
  • Supplements
  • Shop All Care
  • Offers
  • Expert Tips & More
  • Willow App
  • Insurance
  • Breast Pumps
    • Breast Pumps
    • Willow Go® Wearable Breast Pump
      HSA/FSA
      25% OFF

      Willow Go® Wearable Breast Pump

      Our bestselling pump — optimized for comfort and milk output, hospital-grade, and app-controlled. Ranked as #1 wearable breast pump by Babylist. Kit includes NEW Splashguard Containers and 21mm & 24mm flanges.

      from $179.99
      Unit price
      /per 
      Willow 360® Wearable Breast Pump
      HSA/FSA
      25% OFF

      Willow 360® Wearable Breast Pump

      Willow 3.0 is now 360. 100% leak-proof, hospital-grade, app-controlled, and supported by 360 Care. Comes with 21mm inserts & 24mm flanges.

      $499.99
      Unit price
      /per 
    • Go Wearable Electric Pump
    • 360 Wearable Electric Pump
    • Wave Wearable Manual Pump
    • Backup Pump Parts
    • Willow Go vs. 360
    • Pump Insurance Coverage

    • Find Your Pump
    • Shop All Pumps
    • Insurance & HSA/FSA Eligible

      Use FSA/HSA reimbursements or purchase with insurance coverage. Verify eligibility.

  • Pumping Accessories
    • Pumping Accessories
    • Pumping Essentials
      • Pumping Essentials
      • Wearable Manual Pump
      • Pump Carrying Case
      • Convertible Travel Backpack
      • Milk Storage
      • Travel Cleaning Kits
      • Kindred Bravely Pumping Bras
    • Pump Parts
      • Pump Parts
      • Go Backup Parts
      • 360 Backup Parts & Milk Bags
      • Build Your Own Bundle
      • Shop All Accessories
    • Teal
      33% off

      Pump Anywhere Case

      Protect your pump on-the-go with our sleek, sturdy, and easy-to-clean carrying case.

      Regular price $59.99 $39.99
      Unit price
      /per 
      2 colors
    • Insurance & HSA/FSA Eligible

      Use FSA/HSA reimbursements or purchase with insurance coverage. Verify eligibility.

  • Breastfeeding Needs
    • Breastfeeding Needs
    • Hot & Cold Breast Therapy Packs
      New
      HSA/FSA

      Hot & Cold Breast Therapy Packs

      Soothe sore breasts and help promote output with temperature-changing gel packs that turn blue at room temperature, white when hot, and purple when cold.

      $19.99
      Unit price
      /per 
      Soothing Silver Nursing Cups
      HSA/FSA

      Soothing Silver Nursing Cups

      Our nursing cups are anti-inflammatory, anti-microbial, and antifungal to relieve nipple pain.

      $43.99
      Unit price
      /per 
    • Nipple Care
    • Soreness
    • Milk Collection & Leaking
    • Supplements
    • Shop All Care
    • Insurance & HSA/FSA Eligible

      Use FSA/HSA reimbursements or purchase with insurance coverage. Verify eligibility.

  • Shop By Need
    • Shop By Need
    • Best Sellers
    • Milk Storage
    • Leaking & Soreness
    • Hospital Bag
    • Bundle & Save
    • Shop All Collections
    • Insurance & HSA/FSA Eligible

      Use FSA/HSA reimbursements or purchase with insurance coverage. Verify eligibility.

Shop Up to 40% Off
  • Offers
  • Expert Tips & More
  • Willow App
  • Insurance
Sign In
Shipping & Returns
FAQs
  1. Home
    /
  2. Willow 360® Milk Container Insert Replacement Set (2-pack)

Willow 360® Milk Container Insert Replacement Set (2-pack)

Regular price $19.99 $16.99
Unit price
/per 
15% off
HSA/FSA
Willow 360® Milk Container Insert Replacement Set (2-pack)
Willow 360® Milk Container Insert Replacement Set (2-pack)
15% off
HSA/FSA
Willow 360® Milk Container Insert Replacement Set (2-pack)
Willow 360® Milk Container Insert Replacement Set (2-pack)

Willow 360® Milk Container Insert Replacement Set (2-pack)

Regular price $19.99 $16.99
Unit price
/per 
Designed to snap directly into our breast milk storage containers, optimizing comfort and output.
21mmwhat’s my size?

Size Guide

Stay Connected

By signing up, you agree to receive messages including offers and promotions from Willow. You may unsubscribe at any time.

Thanks for subscribing!

Follow #withwillow

Get In Touch

1-888-WILLOW-3

Contact Us

Support Expand section Collapse section

  • FAQs
  • Help Center
  • Shipping & Returns
  • Warranty
  • Pump Sizing Guide
  • Located In Canada

Shopping Expand section Collapse section

  • Pump Kits
  • Willow Go Accessories
  • Willow 360 Accessories
  • Bras
  • Bags & Cases
  • Body Care
  • Compare Pumps
  • Take Our Pump Quiz
  • Refer-A-Friend

Payment Options Expand section Collapse section

  • Insurance Coverage
  • Affirm Payment Plans

Company Expand section Collapse section

  • Careers
  • Newsroom
  • Patents
  • Join Our Affiliate Program
  • Our Blog

Are you a teacher, first responder, healthcare worker, or in the military?
Explore preferred pricing

Willow Pump logo

©2023 Willow Innovations, Inc. All rights reserved.
Willow and the stylized logos are trademarks of Willow Innovations, Inc.

Do Not Sell Or Share My Personal Information

Privacy Notice

Terms of Service

Terms of Sale

Get In Touch

1-888-WILLOW-3

Contact Us

Support

  • FAQs
  • Help Center
  • Shipping & Returns
  • Warranty
  • Pump Sizing Guide
  • Located In Canada

Shopping

  • Pump Kits
  • Willow Go Accessories
  • Willow 360 Accessories
  • Bras
  • Bags & Cases
  • Body Care
  • Compare Pumps
  • Take Our Pump Quiz
  • Refer-A-Friend

Payment Options

  • Insurance Coverage
  • Affirm Payment Plans

Are you a teacher, first responder, healthcare worker, or in the military?
Explore preferred pricing

Company

  • Careers
  • Newsroom
  • Patents
  • Join Our Affiliate Program
  • Our Blog
Willow Pump logo

©2023 Willow Innovations, Inc. All rights reserved.
Willow and the stylized logos are trademarks of Willow Innovations, Inc.

Do Not Sell Or Share My Personal Information

Privacy Notice

Terms of Service

Terms of Sale

Need help?

How can we help you?

Quantity selected exceeds current stock

Insurance & HSA/FSA

FSA/HSA reimbursements eligible

2 ways to pays with

Learn more about payment options

  • Easy to insert into your Willow 360 hands free breast pump before use
  • Parts are dishwaser safe for easy cleanup (keep a spare set on hand to minimze watching between sessions!)
  • Food-grade silicone parts not made with BPA for a safer pumping experience

2 Willow 360 Milk Container Inserts

You can shop all Willow 360 accessories here.

Free shipping on orders $50+

US-Based Customer Care

Willow 360® Milk Container Insert Replacement Set (2-pack)
Willow 360® Milk Container Insert Replacement Set (2-pack)

$19.99$16.99
Quantity selected exceeds current stock

Adding product to your cart

Replacing Your Parts

For optimal output, replace every 90 days (or when you notice discomfort or signs of wear).

Bundle & Save

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

No More Leaks Kit
10% off

No More Leaks Kit

Keep your shirts dry — and don't let a drop of liquid gold go to waste — with our bundle designed for leaky postpartum breasts.

Regular price $55.97 $50.37
Unit price
/per 
Quantity selected exceeds current stock
Breast Milk Storage Essentials
10% 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.

Regular price $75.97 $68.37
Unit price
/per 
Quantity selected exceeds current stock
Early Days Breastfeeding Bundle
10% 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.

Regular price $47.97 $43.17
Unit price
/per 
Quantity selected exceeds current stock
Travel Cleaning Duo
10% off

Travel Cleaning Duo

Everything you need to clean and care for your pumps on-the-go.

Regular price $57.00 $51.30
Unit price
/per 
Quantity selected exceeds current stock

We send great emails, including exclusive discounts, updates on new products & more!

Thanks for subscribing! Check your email for an exclusive discount code.

By signing up, you agree to receive promotional messages from Willow. You may unsubscribe at any time.

Support

  • Download Our App
  • Help Center
  • FAQ
  • Shipping & Returns
  • Pump Sizing Guide
  • Located in Canada
  • Contact Us

Shop

  • Willow Go Pump
  • Willow 360 Pump
  • Pump Bundles
  • Compare Pumps
  • Pumping Bras
  • Breast Care

Company

  • About Us
  • Careers
  • Patents
  • Press
  • Affiliates
  • Chamber of Mothers
  • Canopie

Insurance & Payment Options

  • Insurance Coverage
  • Affirm Payment Plans
  • Ways To Save
  • Refer-A-Friend

Because moms deserve better

© Willow 2025

  • Privacy Notice
  • Terms of Service
  • Terms of Sale

Availability

Loader