---
title: "medela valves and membranes set — Niche Verdict: Skip it (38/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/baby-products/medela-valves-and-membranes-set"
last_updated: "2026-07-14T04:29:01.766Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — medela valves and membranes set doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — medela valves and membranes set doesn't clear our bar today."
  "og:title": "medela valves and membranes set — Niche Verdict: Skip it (38/100) | Amazon United States - Flapen"
---

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# **medela valves and membranes set**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 28Growth 23Conversion 85Competition 21Returns 55Price range 87Avg price 93Brand share 0Review moat 35Quality gap 20

**Avg price**

**Great****$22.37**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$9.56–$61.24**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Conversion**

**Great****9.5%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Good****2.8%**

return rate — above 6% kills the launch gate

**Review moat**

**Okay****2,992.08**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Okay****$121K**

$121K/yr · 57K searches

**Growth**

**Bad****-3.3%**

90-day search growth — must beat 0% to launch

**Competition**

**Bad****75%**

top-5 click share — a locked-up shelf

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**4 **▲rising

**Sellers**

**15**

**Top-5 brand share**

**100%**

**Open market**

**0%**

- Medela67% - Maymom17% - NENESUPPLY14% - CozyBabe3%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%$18K30%$36K45%$54K60%$72K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Medela Symphony Breast Pump Kit Double Pumping System Includes Everything Needed to Start Pumping with Symphony Made Without BPA](https://m.media-amazon.com/images/I/31VkthZBOgL.jpg)**Medela Symphony Breast Pump Kit Double Pumping System Includes Everything Needed to Start Pumping with Symphony Made Without BPA**Medela**$41.53**4.7★1,437 rev](https://www.amazon.com/dp/B000C13SXI) [2![Medela Spare Valves and Membranes 2 Sets Authentic Medela Replacement Parts Designed for All Breast Pumps Except Sonata and Freestyle Made Without BPA](https://m.media-amazon.com/images/I/31k6cU8VMFL.jpg)**Medela Spare Valves and Membranes 2 Sets Authentic Medela Replacement Parts Designed for All Breast Pumps Except Sonata and Freestyle Made Without BPA**Medela**$9.56**4.8★5,346 rev](https://www.amazon.com/dp/B0006Q561Q) [3![Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve](https://m.media-amazon.com/images/I/416kUqmg2FL.jpg)**Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve**Maymom**$26.68**5.0★1 rev](https://www.amazon.com/dp/B0FRMCZZHV) [4![Nenesupply Pump Parts with 24mm Flanges Compatible with Medela Pump in Style Parts Accessories Breast Pump Not Original Medela Pump Parts Incl. 24mm Flange Breastshield Connector Valve Membrane Tubing](https://m.media-amazon.com/images/I/41PtW+hOjUL.jpg)**Nenesupply Pump Parts with 24mm Flanges Compatible with Medela Pump in Style Parts Accessories Breast Pump Not Original Medela Pump Parts Incl. 24mm Flange Breastshield Connector Valve Membrane Tubing**NENESUPPLY**$19.23**4.6★1,149 rev](https://www.amazon.com/dp/B08BR7FC9X) [5![2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom](https://m.media-amazon.com/images/I/31UpPS+dVlL.jpg)**2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom**Maymom**$13.65**4.4★6,786 rev](https://www.amazon.com/dp/B00GKNIGAM)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Two Complete Sets Compatible with Medela Symphony Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges)](https://m.media-amazon.com/images/I/41e10XQxbML.jpg)**Two Complete Sets Compatible with Medela Symphony Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges)**CozyBabe**$61.24**7 rev4mo ago](https://www.amazon.com/dp/B0GKWBXWBK) [![Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve](https://m.media-amazon.com/images/I/416kUqmg2FL.jpg)**Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve**Maymom**$26.68**1 rev9mo ago](https://www.amazon.com/dp/B0FRMCZZHV) [![Nenesupply Membranes Valves Compatible with Medela Breast Pump Parts Not Original Medela Membrane Replacement Parts Accessories Compatible with Pump in Style Parts Symphony Harmony Hand Pump](https://m.media-amazon.com/images/I/41ngp-d8Y-L.jpg)**Nenesupply Membranes Valves Compatible with Medela Breast Pump Parts Not Original Medela Membrane Replacement Parts Accessories Compatible with Pump in Style Parts Symphony Harmony Hand Pump**NENESUPPLY**$9.86**2,585 rev12y ago](https://www.amazon.com/dp/B00GMD8Q5A) [![2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom](https://m.media-amazon.com/images/I/31UpPS+dVlL.jpg)**2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom**Maymom**$13.65**6,786 rev12y ago](https://www.amazon.com/dp/B00GKNIGAM) [![Medela Symphony Protective Cap & Membranes.](https://m.media-amazon.com/images/I/31goZovmvxL.jpg)**Medela Symphony Protective Cap & Membranes.**Medela**$26.64**55 rev12y ago](https://www.amazon.com/dp/B004D7QLNG)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Two Complete Sets Compatible with Medela Symphony Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges)](https://m.media-amazon.com/images/I/41e10XQxbML.jpg)**Two Complete Sets Compatible with Medela Symphony Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges)**CozyBabe**$61.24**4.8★**▲ 273%**](https://www.amazon.com/dp/B0GKWBXWBK) [![Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve](https://m.media-amazon.com/images/I/416kUqmg2FL.jpg)**Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve**Maymom**$26.68**5.0★**▲ 174%**](https://www.amazon.com/dp/B0FRMCZZHV) [![Nenesupply Pump Parts with 24mm Flanges Compatible with Medela Pump in Style Parts Accessories Breast Pump Not Original Medela Pump Parts Incl. 24mm Flange Breastshield Connector Valve Membrane Tubing](https://m.media-amazon.com/images/I/41PtW+hOjUL.jpg)**Nenesupply Pump Parts with 24mm Flanges Compatible with Medela Pump in Style Parts Accessories Breast Pump Not Original Medela Pump Parts Incl. 24mm Flange Breastshield Connector Valve Membrane Tubing**NENESUPPLY**$19.23**4.6★**▲ 52%**](https://www.amazon.com/dp/B08BR7FC9X) [![2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom](https://m.media-amazon.com/images/I/31UpPS+dVlL.jpg)**2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom**Maymom**$13.65**4.4★**▲ 22%**](https://www.amazon.com/dp/B00GKNIGAM) [![Medela Symphony Protective Cap & Membranes.](https://m.media-amazon.com/images/I/31goZovmvxL.jpg)**Medela Symphony Protective Cap & Membranes.**Medela**$26.64**4.6★**— 0%**](https://www.amazon.com/dp/B004D7QLNG)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -3.3% search growth over the last 90 days.

3K2K seasonSepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 1.7×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**14%

*“Great quality”*

**Value For Money**13%

*“Great value”*

**Storage Capacity**13%

*“Great way to store breastmilk”*

**Size-Overall**12%

*“Fits perfectly”*

**Ease Of Use**9%

*“easy to use”*

**Ease Of Cleaning**8%

*“easy to clean”*

**Advertised Vs Actual Product**5%

*“As described”*

**Compatibility-Overall**4%

*“theyre compatible with both”*

**Leak-Proof**4%

*“they dont leak”*

**Safety Standards**3%

*“Saver life”*

### **What buyers complain about **

**Compatibility-Overall**13%

*“is not compatible”*

**Value For Money**13%

*“I felt they were kind of pricey”*

**Leak-Proof**10%

*“spilled breast milk because there wasn't a tight seal”*

**Product Condition**10%

*“Bottles were used previously as they had some wear on it”*

**Measurement/Reading Accuracy**8%

*“Only gave three stars because I found the measuring lines hard to read”*

**Ease Of Cleaning**7%

*“Cleaning pump pieces often can be a hassle”*

**Durability**5%

*“One of the pieces cracked within a week of using”*

**Defective Material/Parts**5%

*“One of the pieces cracked within a week of using”*

**Size-Overall**3%

*“Unfortunately, they were too small and did not”*

### **Top return reasons **

**Size-Overall**34%

**Advertised Vs Actual Product**10%

**Value For Money**7%

**Defective Material/Parts**6%

**Product Condition**6%

**Breastfeeding Friendly**6%

**Material Quality**6%

**Compatibility-Overall**5%

**Functionality-Overall**4%

**Leak-Proof**3%