Replacing Your Parts
Frequently Asked Questions
Our bestselling pump, ranked #1 in comfort for more milk output. App-controlled, hospital-grade suction, SplashGuard™ containers. Kit comes with 21 and 24mm flanges.
Willow 3.0 is now 360. 100% leak-proof, hospital-grade, app-controlled, and supported by 360 Care. Comes with 21mm inserts & 24mm flanges.
The first-ever 2-in-1 double manual pump with an ergonomic handle that also connects to your traditional pump for a hands-free experience—no charging required. Includes 24mm flange made of soft silicone for a smooth fit and optimal milk flow.
Meet the Breast Milk Cooler that cools faster and stays colder for up to 24 hours vs. leading milk coolers.* Plus, with new sizes, colors, and two ways to cool, this patent-pending Cooler safely and stylishly lets moms store milk wherever the day takes them.
*Compared to leading milk coolers in Eurofins 2026 controlled, third-party testing
Protect your pump on-the-go with our sleek, sturdy, and easy-to-clean carrying case.
The all-in-one cleaning kit for pump parts, bottles, and more. Just add your favorite soap!
Made with plant-based ingredients to remove breast milk residue from your Willow pumps and parts.
Everything you need to prioritize breast care and comfort, catch every drop of hard-earned breast milk, and feed with more confidence. Plus, every purchase includes access to a virtual appointment with an International Board Certified Lactation Consultant (IBCLC), as well as a free digital feeding course.
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.
Find your perfect breast pump flange fit with a wide range of inserts designed for maximum pumping comfort and milk output.
Our reusable containers (available in 5 oz and 7 oz) now feature a silicone Splashguard to give you more peace of mind (and less mess) when pumping.
Meet the Breast Milk Cooler that cools faster and stays colder for up to 24 hours vs. leading milk coolers.* Plus, with new sizes, colors, and two ways to cool, this patent-pending Cooler safely and stylishly lets moms store milk wherever the day takes them.
*Compared to leading milk coolers in Eurofins 2026 controlled, third-party testing
Put your breast milk organization on autopilot. Featuring our premium Breast Milk Storage bags with SmartStash capability–a unique scannable code that lets you auto-input and track bags in your digital stash–and Flatteners to evenly organize and freeze your physical stash, this combo does the mental math for pumping moms.
• New! Our redesigned Splashguard Containers help prevent milk from splashing out of the container, giving you more freedom to move
• Our low-profile containers are available in 5 oz or 7 oz to give you the flexibility you need
• Dishwasher-safe for easy clean-up (they’re made without BPA, too!)
• Designed for easy milk transfer into a bottle, storage bag, or container
• Splashguard is only compatible with the new Splashguard Container
• 2 x Container Backs
• 2 x Container Bowls (5 or 7 oz)
• 2 x Duckbills
• 2 x Splashguards
Diaphragms not included. You can shop additional Willow Go Accessories here.
Free shipping on orders $50+
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For optimal output, replace every 90 days (or when you notice discomfort or signs of wear).
Yes, you can. Simply pay for your breast pump and accessories using your FSA/HSA debit card at checkout, or pay with another credit card and submit your receipt to your plan administrator for reimbursement.
The Splashguard Container kit includes 2 container bowls, backs, Splashguards and duckbill valves in 5 or 7 oz.
After every use, you can wash by hand or pop the parts in the dishwasher on the top rack only.
You'll need to transfer your milk to a storage container after you pump with Go. It’s important to wash breast pumping parts after every session to avoid the growth of bacteria.
Replacement rates can vary based on how often you pump, but we recommend replacing the flanges, containers, duckbill valves and pump diaphragms every 90 days for optimal performance
Get in touch with our customer support team via chat, email, or calling 1-888-Willow-3
No. Splashguards should not be used with earlier versions of the Willow Go container, as they do not have a vent to prevent pressurization, which may cause leaking to occur.
No. The Splashguard prevents milk from splashing out of the container, giving you more freedom to pump on the move. The Willow 360 is still the only pump that’s 100% leak-proof in any position – laying down, bending over, or running around.
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