--- product_id: 483015046 title: "Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange" brand: "willow" price: "FREE" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/483015046-willow-breast-pump-sizing-insert-19mm-2-ct-flange-inserts store_origin: GB region: United Kingdom --- # 19mm precision sizing BPA-free silicone comfort Reusable & dishwasher safe Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange **Brand:** willow **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > πŸ‘©β€πŸΌ Perfect fit, maximum comfort β€” because every drop counts! ## Quick Answers - **What is this?** Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange by willow - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/483015046-willow-breast-pump-sizing-insert-19mm-2-ct-flange-inserts) ## Best For - willow enthusiasts ## Why This Product - Trusted willow brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Hygiene:** Dishwasher safe design means quick, hassle-free cleaning - β€’ **Universal Compatibility:** Fits seamlessly into 24mm Willow flanges and reusable containers - β€’ **Premium Silicone Comfort:** Flexible, BPA-free material ensures a snug, irritation-free seal - β€’ **Trusted by 300,000+ Moms:** Join a community prioritizing comfort and efficiency in pumping - β€’ **Tailored Fit for Smaller Sizes:** Optimizes comfort and milk output for moms under 21mm ## Overview The Willow Breast Pump Sizing Insert in 19mm is a reusable, BPA-free silicone flange insert designed to improve fit and comfort for moms with smaller nipple sizes. Compatible with 24mm Willow breast pump flanges, it enhances pumping efficiency and is dishwasher safe for easy cleaning. Trusted by over 300,000 moms, it supports optimal milk output and comfort during pumping sessions. ## Description Designed with moms in mind, Willow Breast Pump Flange Inserts help optimize comfort and output for moms who need a wearable breast pump flange smaller than 21mm. Made from BPA-free, dishwasher-safe silicone, each flange insert is easy to assemble, clean and remove. Clear color delivers easy nipple visibility for a secure, snug fit. Available in 13mm, 15mm, 17mm, 19mm and 21mm, our flange inserts are compatible with 24mm Willow flanges and containers. We recommend replacing breast pump inserts every 3 months for optimal breast pumping performance. Normal wear and tear can impact suction and output. You deserve a pump you love. Powerful, comfortable, fully in bra and app-connected, our wearable pumps for breastfeeding are simply built different. So cut the cords, ditch the dupes and join the 300,000 moms who have brought Willow into their lives. Find your perfect Willow breast pump today and unlock the convenience of hands-free pumping. ## Features - Reusable Breast Pump Flange Inserts: Designed to help optimize comfort and output for moms who measure smaller than 21mm, Willow Breast Pump Sizing Inserts in 13mm offers the pumping convenience you deserve - Comfortable, Silicone Design: Flexible, BPA free silicone provides a snug, secure fit; Dishwasher safe, flange inserts for Willow Breast Pump are easy to clean; Clear color provides easy nipple visibility - Compatible with Any Breast Pump: Pair with 24mm breast pump flanges and reusable containers; Keep a spare set on hand to minimize washing between hands free pumping sessions - Find Your Perfect Fit: Breast pump inserts are available in 5 sizes: 13mm, 15mm, 17mm, 19mm and 21mm; Reference Willow's size chart to determine your size for an optimal pumping experience - Trusted and True: We recommend replacing breast pump flange inserts every 3 months for optimal performance; Join the 300,000 moms who have brought Willow into their homes and lives ## Technical Specifications | Specification | Value | |---------------|-------| | Units | 2.0 Count | | Brand | Willow | ## Product Details - **Brand:** Willow - **Special feature:** Wearable - **Material:** Silicone - **Power source:** Battery Powered - **Included components:** Breast Flange - **Material Type Free:** Lead Free - **Number of items:** 1 - **Colour:** Clear - **Dishwasher safe?:** No - **Size:** 19mm ## Images ![Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange - Image 1](https://m.media-amazon.com/images/I/31LUxe1lEfL.jpg) ![Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange - Image 2](https://m.media-amazon.com/images/I/51hgimPoA7L.jpg) ![Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange - Image 3](https://m.media-amazon.com/images/I/71HR4gJZuJL.jpg) ![Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange - Image 4](https://m.media-amazon.com/images/I/41+Tfn3NCkL.jpg) ![Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange - Image 5](https://m.media-amazon.com/images/I/71PxqF3oeYL.jpg) ## Questions & Answers **Q: Does it come with one or two?** A: Two :) **Q: Are these compatible with the Willow Go?** A: Yes **Q: Can I use these for the zomee z2?** A: I don’t own the zomee but I have tried these with several different pumps and these inserts can pretty much fit universally into any 24mm flange. **Q: I measured for a 17mm flange. According to the sizing chart I would order a 19mm. Is that correct?** A: That is what I did and ir fit very well. I can use them in my willow go and my momcozy s12 pro! ## Frequently Bought Together - Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange - Willow - 360 Breast Pump Flextubes - for Spare Use or Replacement Part for The Willow 360 or 3.0 Wearable, Hands-Free Breast Pump, Breastfeeding Essential for New Moms- 2ct - Willow - 360 Pump Spill-Proof Breast Milk Bags - 48 Ct - Holds 4 oz. Per Self-Sealing Storage Bag - Compatible with Willow 360 or 3.0 Wearable Hands Free Breast Pump --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/483015046-willow-breast-pump-sizing-insert-19mm-2-ct-flange-inserts](https://www.desertcart.co.uk/products/483015046-willow-breast-pump-sizing-insert-19mm-2-ct-flange-inserts) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*