--- product_id: 1813666 title: "Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings" brand: "maymom" price: "179 kr" currency: DKK in_stock: true url: https://www.desertcart.dk/products/1813666-conversion-kit-compatible-with-medela-breast-pumps-selected-to-be store_origin: DK region: Denmark --- # Leak-proof design 4 conversion rings BPA free Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings **Brand:** maymom **Price:** 179 kr **Availability:** ✅ In Stock ## Summary > 🚀 Pump Smarter, Not Harder! ## Quick Answers - **What is this?** Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings by maymom - **How much does it cost?** 179 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/1813666-conversion-kit-compatible-with-medela-breast-pumps-selected-to-be) ## Best For - maymom enthusiasts ## Why This Product - Trusted maymom brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Use:** Compatible with a variety of popular breast pump brands, making it a must-have for every mom. - • **Dishwasher Safe:** Effortlessly clean and maintain your kit for busy lifestyles. - • **Leak Prevention:** Includes sealing o-rings to ensure a mess-free pumping experience. - • **Seamless Compatibility:** Easily adapt your Medela pump to Avent and Spectra bottles for ultimate convenience. - • **Hypoallergenic Materials:** Crafted from safe, silicone and plastic materials for peace of mind. ## Overview The Maymom Conversion Kit transforms your Medela breast pump into a versatile tool compatible with Avent Classic and Spectra Wide-mouth bottles. This kit includes 4 conversion rings and sealing o-rings to prevent leaks, ensuring a hassle-free pumping experience. Made from BPA-free materials, it's dishwasher safe and designed for easy cleaning, making it an essential accessory for modern moms. ## Description Maymom Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings ## Features - Compatible with Medela older pump (old pump in style, freestyle, swing); for newer pumps (flex, pis with maxflow), look up ASIN B07MY18RVZ; This product will enable the above flanges to be compatible with Avent bottle, spectra bottles etc. - Includes 4 conversion rings plus 4 sealing o-rings to avoid many leaking events. - BPA free, dishwasher safe, retail pack, sealed by manufacturer. - You can pump directly into Avent bottles. - Also Adapts to: Evenflo Comfort Select, Ameda Purely Yours, Lansinoh Double Electric, Playtex Embrace, Dr. Brown's Natural Flow Electric/Manual ## Technical Specifications | Specification | Value | |---------------|-------| | Product Dimensions | 4.5 x 2.3 x 2 inches | | Item model number | M017-Rx4 | | Is Discontinued By Manufacturer | No | | Material Type | Silicone, Plastic | | Additional product features | hypoallergenic | | Number Of Items | 1 | | Batteries required | No | | Dishwasher safe | No | | Bottle type | Anti-Colic Bottle | | Is portable | No | | Item Weight | 1.12 ounces | | Country/Region of origin | Taiwan | ## Product Details - **Brand:** Maymom - **Special Feature:** hypoallergenic - **Material:** Silicone, Plastic - **Number of Items:** 1 - **Color:** White ## Images ![Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings - Image 1](https://m.media-amazon.com/images/I/515C8AZujCL.jpg) ## Questions & Answers **Q: I have a spectra s2 pump and meddle bottles. Does this work for wide (spectra) to regular (meddle) collection bottle conversion?** A: No. This connects to Medela flange components, but the Spectra's shield/flange thing-y is too wide on the bottom. I tried to connect it "upside down" but the threadded parts are both on the inside (so like trying to connect two female plug-ends) and it did not work. I have ALL my stuff out bc I'm putting it away (YAY!) today.Here's the deal that I found worked wonders for me (I exclusively pumped). I use the Spectra S2 (best thing EVER!!) but I had a ton of Medela stuff and I like that you can pick your shield size. So I used Medela parts on the Spectra S2. All you need to do that (and use your Medela bottles) is to buy Maymom's little yellow connectors for Spectra-to-Medela. Presto- DONE!Another tip-- because I pumped so much, I, like so MANY other moms found that the Pumpin' Pals shields was a life saver. They don't hurt, and you can lean back. They go well with the Medela pump parts and Spectra S2 setup, because they just go where the shields went. On Spectra pump parts, since the shield is part of the flange, I don;t know how they get inserted or if it works well. But hey, if you've got Medela stuff laying around, those little yellow adapters are super-cheap, consider giving them a try! GOOD LUCK!! **Q: Does it work with dr brown bottles?** A: No- not the standard (small) neck bottles. The skinny end goes into your Medela part that brings the milk from the breast into a container. This would connect that Medela part to a larger-mouthed bottle. So, without it, you can hook Medela bottles AND Dr. Brown's skinny/normal-necked bottles. But by adding this, you can connect your Medela setup to Spectra wide-mouth bottles. I do not know about Dr. Brown's wide-mouth bottles. **Q: Do these work with mason jars?** A: sorry. No. this one does not work with mason jar. **Q: What's the difference with other same products?** A: It depends which other products. I'm guessing it's for other sizes of bottles. ## Frequently Bought Together - Maymom Conversion Kit Compatible with Medela Breast Pumps (Selected) to be Compatible with Avent Classic Bottles, Avant Natural PP Bottle and speCtra Wide-mouth Bottles Thread Changer; w Sealing Rings - Medela Manual breast pump with Flex Shields Harmony Single Hand for More Comfort and Expressing More Milk - Medela Breast Milk Collection and Storage Bottles, BPA Free, 6 Pack, 5 Ounces, Compatible with Medela Breast Pumps --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/1813666-conversion-kit-compatible-with-medela-breast-pumps-selected-to-be](https://www.desertcart.dk/products/1813666-conversion-kit-compatible-with-medela-breast-pumps-selected-to-be) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-24*