# Checking Medela Part Compatibility and Authenticity How can a shopper tell whether a Medela replacement part is genuine and fits a specific pump model? MEDELA Sonata Spare Parts Kit \(sold by anbbaby\.com\): The kit is exclusively for the Medela Sonata breast pump\. The kit contains authentic Medela spare parts\. Medela PersonalFit Connectors: For Medela Symphony and Pump in Style Advanced breast pumps\. Not compatible with Pump in Style with MaxFlow, Freestyle, Freestyle Flex, Harmony, Sonata, or Swing\. Described as the same connectors supplied with the Pump In Style Advanced Starter Set\. MEDELA 101029307: The breast shields fit most Medela pumps but not the Freestyle, Swing, or Harmony models\. Medela PersonalFit Breast Shields: The store says they are compatible with all Medela breast pumps\. The SKU is MED101028990\-ANB\. ### 1. [MEDELA Sonata Spare Parts Kit](/products/ucp/anbbaby-com/1706939940964) (sold by anbbaby\.com) The kit is exclusively for the Medela Sonata breast pump\. - Model compatibility: The kit is exclusively for the Medela Sonata breast pump\. (listing) - Authenticity: The kit contains authentic Medela spare parts\. (listing) - Identifier: - ### 2. [Medela PersonalFit Connectors](/products/ucp/anbbaby-com/8777998106910) (sold by anbbaby\.com) For Medela Symphony and Pump in Style Advanced breast pumps\. - Model compatibility: For Medela Symphony and Pump in Style Advanced breast pumps\. (listing) - Authenticity: Described as the same connectors supplied with the Pump In Style Advanced Starter Set\. (listing) - Identifier: - ### 3. [MEDELA 101029307](/products/ucp/anbbaby-com/1706913857636) (sold by anbbaby\.com) The breast shields fit most Medela pumps but not the Freestyle, Swing, or Harmony models\. - Model compatibility: The breast shields fit most Medela pumps but not the Freestyle, Swing, or Harmony models\. (guide) - Authenticity: - - Identifier: - ### 4. [Medela PersonalFit Breast Shields](/products/ucp/anbbaby-com/1706915299428) (sold by anbbaby\.com) The store says they are compatible with all Medela breast pumps\. - Model compatibility: The store says they are compatible with all Medela breast pumps\. (listing) - Authenticity: - - Identifier: The SKU is MED101028990\-ANB\. (listing) ## Also cited in the text - Medela PersonalFit Connectors, Incompatible pumps: Not compatible with Pump in Style with MaxFlow, Freestyle, Freestyle Flex, Harmony, Sonata, or Swing\. (listing) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-31T07:23:28.011Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)