--- product_id: 6150837 title: "Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield" brand: "maymom" price: "$48.99" currency: USD in_stock: true category: "Maymom" url: https://www.desertcart.us/products/6150837-breast-pump-kit-compatible-with-medela-pump-in-style-advanced store_origin: US region: United States of America --- # 100% Medela Pump in Style compatibility 4 valves for optimal suction FDA-registered & BPA-free safety Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield **Brand:** maymom **Price:** $48.99 **Availability:** ✅ In Stock ## Summary > 👩‍🍼 Pump smarter, not harder — the ultimate Medela-compatible kit for empowered moms! ## Quick Answers - **What is this?** Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield by maymom - **How much does it cost?** $48.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/6150837-breast-pump-kit-compatible-with-medela-pump-in-style-advanced) ## 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 - • **Complete 14-Piece Kit:** Includes 2 tubes and 2 one-piece breastshields for a ready-to-use, all-in-one pumping experience. - • **FDA-Registered & BPA-Free:** Crafted from safe, FDA-approved materials, giving you peace of mind with every pump session. - • **Seamless Medela Compatibility:** Perfectly fits Medela Pump in Style Advanced pumps (21mm), guaranteeing hassle-free integration and peak performance. - • **Trusted Quality with 5 Years Expertise:** Backed by Maymom’s proven track record and 8,000+ glowing reviews, join thousands of moms who trust this kit. - • **Precision-Engineered Valves & Membranes:** 4 valves and 6 membranes ensure consistent, efficient milk flow for busy moms on the go. ## Overview The Maymom Breast Pump Kit is a 14-piece, FDA-registered accessory set designed exclusively for Medela Pump in Style Advanced breast pumps with 21mm breastshields. Featuring 4 valves, 6 membranes, and BPA-free materials, it ensures safe, efficient, and reliable pumping. With 5 years of expertise and over 8,000 positive reviews, this kit offers seamless compatibility and premium quality for modern, health-conscious moms. ## Description desertcart.com : Maymom Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield : Baby ## Features - Contains 4 valves, 6 membranes, 2 tubes and 2 one-piece breastshields, 21 mm; Compatible with Medela Pump in Style pump parts. NOT compatible with FreeStyle, Swing Maxi, Sonata, Harmony, Pump in Style with Maxflow Pro Pro+. Comparable to Medela small breastshield or medela 21 mm breastshield. - US FDA registered medical device (No. D192499); Complies with US FDA standards for containers that contact food and class II medical device. Passes FDA inspection. Test reports are online for your reference; - BPA free; Retail poly-bag packed; Sealed by the manufacturer -Maymom - Bottles are not included. You can use any Medela bottles or other cheap standard sized bottles (like Gerber, Nuk, and Playtex available from your local drug/grocery/dept stores). - 5 years of experience in making high quality breast pump parts for Medela Pumps; 100% compatibility and satisfaction guaranteed! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00HI8BKRE | | Best Sellers Rank | #21,199 in Baby ( See Top 100 in Baby ) #57 in Manual Breast Pumps | | Brand | Maymom | | Brand Name | Maymom | | Customer Reviews | 4.6 out of 5 stars 8,214 Reviews | | Is Dishwasher Safe | No | | Is the item dishwasher safe? | No | | Item Weight | 4 ounces | | Manufacturer | Maymom | | Manufacturer Part Number | 1 | | Material | Plastic, Silicone | | Material Type | Plastic, Silicone | | Model Number | 1 | | Product Style | 21mm | | Size | 14 Piece Set | | Style | 21mm | | UPC | 738435627744 | | Unit Count | 1 Count | ## Product Details - **Brand:** Maymom - **Is Dishwasher Safe:** No - **Item Weight:** 0.25 Pounds - **Material:** Plastic, Silicone - **Style:** 21mm ## Images ![Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield - Image 1](https://m.media-amazon.com/images/I/61tYs63xn+L.jpg) ![Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield - Image 2](https://m.media-amazon.com/images/I/817XzfUUpeL.jpg) ![Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield - Image 3](https://m.media-amazon.com/images/I/61n10tFP0KL.jpg) ![Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield - Image 4](https://m.media-amazon.com/images/I/81ze7m0qAjL.jpg) ![Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield - Image 5](https://m.media-amazon.com/images/I/71TdYM0UQKL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: How do I know what size to buy? S, M+, L, XL** A: We are the manufacturer of this product.First, measure the diameters of your nipples AFTER a pumping session. If you don't know how to measure it, follow maymom.com/nippleruler to make yourself a nipple ruler. Knowing these data, the general rules of thumb are that the inner diameter of the breast shield should be 1-2 millimeter larger than your nipple diameter. If you measure nipple diameter BEFORE a pumping session, we can only estimate that the breastshield shield should be 2-5 mm larger.Example: the diameter of your nipple after a pumping session is 23 mm, then choose the M (24mm) or M+ (25mm) breasthields. Furthermore, please also try the following check list to find the best one for you. Center the nipple in the tunnel of the breastshield. Now begin pumping and check the following points: Is your nipple moving freely in the tunnel? Is none or only very little tissue of the areola being pulled into the tunnel of the breastshield? Do you recognize gentle, rhythmic movements in the breast at each pump cycle? Do you feel the breast emptying all over? Is your nipple free of pain? With the above check list, a mother can easily assess whether she is using the right Breastshield size. All points should be "true", then you have the right size of breastshield.A correctly fitted breastshield prevents the milk ducts from being compressed, thus enabling an optimal emptying of the breast and maximum milk output when pumping. This helps mothers to maintain their milk production and supports lactation. It also prevents chaffing and tenderness of around the nipple area. **Q: Does this accessory kit fit the pump in style original, bought in 2005?** A: Yes, it will fit Pump in style, made in 2004. If not, it also includes a set of extra tubing connectors that you can use to adapt to your machine. **Q: Does it compatible with Medela Pump In Style Advanced Breastpump Starter Set-Model # 57081???** A: Not sure what all the model numbers coordinate to.. I have the medela pump in style tote from WIC, the tan one, and these we're compatible. **Q: I see that the product info says these pieces are steam sterilization safe, but is it also safe to boil them when sterilizing the parts?** A: Absolutely. I boil mine every other day. I bought 2 sets so I have 4 breastshields and extra valves. I boil all for minimum 4 minutes, sometimes 6 or 8. No problems so far. ## Frequently Bought Together - Maymom Breast Pump Kit Compatible with Medela Pump in Style Advanced Breastpumps NOT for Pump in Style with MaxFlow, 21 mm Breastshield - Medela Breast Milk Collection and Storage Bottles, BPA Free, 6 Pack, 5 Ounces, Compatible with Medela Breast Pumps - Maymom Breast Pump Bottle Compatible with Medela Pump in Style MaxFlow, Freestyle, Swing Maxi Pump, Maymom Breastshields; Compatible with Ameda MYA Joy, Finesse and Purely Yours Pumps; 8pc/pk --- ## 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.us/products/6150837-breast-pump-kit-compatible-with-medela-pump-in-style-advanced](https://www.desertcart.us/products/6150837-breast-pump-kit-compatible-with-medela-pump-in-style-advanced) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-15*