Willow: Wearable Breast Pump – Willow Pump

Willow Go® Flange Set (2-pack)

Willow Go® Flange Set (2-pack) - Main image
$20 $39.99 In stock

Category: Backup Pump Parts

Willow Go's flanges come in 3 sizes so you can find your best fit. In addition, 24mm flanges are compatible with sizing inserts for mamas who measure smaller than 21mm.

Replacing Your Parts

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

How long does breast milk last?

How to thaw & warm safely

How to store breast milk on-the-go

Before you pay

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Please contact us for the refund processing timeframe before returning an item.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (3.8 / 5 · 5 reviews)

Sofia ★★★★★

Finally found flanges that actually seal properly with my Willow Go, and the 24mm pair works perfectly with the sizing inserts for my smaller measurement. The two-pack means I always have a clean set ready during those 3 a.m. pump sessions, which has been a lifesaver.

Lily ★★★★☆

The 24mm size fits my Willow Go perfectly. Wish the pack included a third flange, since my first set wore out fast from constant use.

David U. ★★★★☆

The 24mm size fits my smaller measurement perfectly with the inserts, and having a two-pack means I always have a clean one ready. Would love if they offered a 21mm option directly, but these work well for my backup pump kit.