360° leak-proof pumping
Hospital-grade, fully in-bra
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Save with insurance: Most moms can save $95-159 on a Willow Pump Verify insurance →
Save with insurance: Most moms can save $95-159 on a Willow Pump Verify and save →
Keep your Willow Go pump working its best with this replacement parts bundle! Even better, keep a spare set of pump parts on hand to minimize clean-up between sessions. Includes 1 set of duckbill valves and 1 set of pump diaphragms.
Did you know: you should replace pump parts every three months for optimal performance. Normal wear and tear can impact suction and output! Having extras on hand is helpful in the event that you lose a part, too.
Sizing inserts can only be used with a 24mm flange or 24mm container insert.
Questions? Our experts can help.1-888-WILLOW-3
Your Flange Fit Bundle will include two sets of inserts (or a set of flanges and inserts). If you receive inserts, you will need to use the 24mm flange included in your pump kit.*
The inserts you receive are yours to keep. As your breasts and nipples change size throughout your pumping journey, you may find that you use both of them, plus the other flanges in your pump kit, at different points.
*Sometimes flanges just won't fit well enough on their own. Inserts are a great way to optimize fit and make them more comfortable.
The Willow Fit Check includes one virtual session with a Sizing Specialist. During the 30-minute appointment, they can walk you through taking your measurements, answer any questions about how to use your inserts, and help you perfect your fit.
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