---
title: "medela membranes — Niche Verdict: Skip it (38/100) | Amazon United States - Flapen"
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last_updated: "2026-07-13T22:42:29.494Z"
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  description: "a small market ($41K/yr) — medela membranes doesn't clear our bar today."
  "og:description": "a small market ($41K/yr) — medela membranes doesn't clear our bar today."
  "og:title": "medela membranes — Niche Verdict: Skip it (38/100) | Amazon United States - Flapen"
---

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# **medela membranes**

**Skip it**

A small market ($41K/yr) — this niche doesn't clear our bar today.

Market size 10Growth 24Conversion 93Competition 15Returns 85Price range 37Avg price 39Brand share 16Review moat 46Quality gap 53

**Conversion**

**Great****11.4%**

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

**Returns**

**Great****1.5%**

return rate — above 6% kills the launch gate

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Okay****1,860.9**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Okay****$10.70**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****$5.99–$20.30**

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

**Growth**

**Bad****-2.9%**

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

**Brand share**

**Bad****94%**

top-5 brand share — brand-locked demand

**Competition**

**Bad****82%**

top-5 click share — a locked-up shelf

**Market size**

**Bad****$41K**

$41K/yr · 33K searches

## **Competition**

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**7 **▲rising

**Sellers**

**28**

**Top-5 brand share**

**94%**

**Open market**

**3%**

- Medela63% - PUMPMOM-US14% - NENESUPPLY8% - Wevedk5% - Maymom4% - IVARONAL4% - Open — no brand owns it (1 brand, 3%)

## **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%$6K30%$12K45%$18K60%$24K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 10 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Medela Spare Membranes Breast Pump Replacement Parts Made Without BPA Authentic Medela Spart Parts White 6 count(Pack of 1)](https://m.media-amazon.com/images/I/31IwVODj8OL.jpg)**Medela Spare Membranes Breast Pump Replacement Parts Made Without BPA Authentic Medela Spart Parts White 6 count(Pack of 1)**Medela**$6.65**4.8★6,126 rev](https://www.amazon.com/dp/B0001CTZ8K) [2![PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)](https://m.media-amazon.com/images/I/4128z1YBM4L.jpg)**PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)**PUMPMOM-US**$11.54**4.4★724 rev](https://www.amazon.com/dp/B0FSL5853T) [3![Medela Membranes for Hands-Free Collection Cups 2-Pack](https://m.media-amazon.com/images/I/61tP3EnMpFL.jpg)**Medela Membranes for Hands-Free Collection Cups 2-Pack**Medela**$20.30**4.7★405 rev](https://www.amazon.com/dp/B0CG6RPWV9) [4![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) [5![4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps](https://m.media-amazon.com/images/I/41FV+omVD6L.jpg)**4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps**Wevedk**$16.82**3.7★12 rev](https://www.amazon.com/dp/B0GGQMZBFQ)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps](https://m.media-amazon.com/images/I/41FV+omVD6L.jpg)**4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps**Wevedk**$16.82**12 rev5mo ago](https://www.amazon.com/dp/B0GGQMZBFQ) [![PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)](https://m.media-amazon.com/images/I/4128z1YBM4L.jpg)**PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)**PUMPMOM-US**$11.54**724 rev9mo ago](https://www.amazon.com/dp/B0FSL5853T) [![2pcs Silicone Membranes Compatible with Medela Pump Parts Pump Replacement Diaphragm for PersonalFit Flex connectors Pump in Style MaxFlow Swing Maxi Freestyle Flex Breast Pumps](https://m.media-amazon.com/images/I/414SjgOpbqL.jpg)**2pcs Silicone Membranes Compatible with Medela Pump Parts Pump Replacement Diaphragm for PersonalFit Flex connectors Pump in Style MaxFlow Swing Maxi Freestyle Flex Breast Pumps**IVARONAL**$9.98**20 rev9mo ago](https://www.amazon.com/dp/B0FRYR19C4) [![Membranes Compatible with Medela Pump Parts 2-Pack BPA Free Silicone Membranes Compatible with PersonalFit Flex connectors Spare Parts 2 Count](https://m.media-amazon.com/images/I/41vkMOyo9aL.jpg)**Membranes Compatible with Medela Pump Parts 2-Pack BPA Free Silicone Membranes Compatible with PersonalFit Flex connectors Spare Parts 2 Count**Generic**$8.33**76 rev1y ago](https://www.amazon.com/dp/B0DFGFVPY1) [![Medela Membranes for Hands-Free Collection Cups 2-Pack](https://m.media-amazon.com/images/I/61tP3EnMpFL.jpg)**Medela Membranes for Hands-Free Collection Cups 2-Pack**Medela**$20.30**405 rev2y ago](https://www.amazon.com/dp/B0CG6RPWV9)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps](https://m.media-amazon.com/images/I/41FV+omVD6L.jpg)**4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps**Wevedk**$16.82**3.7★**▲ 280%**](https://www.amazon.com/dp/B0GGQMZBFQ) [![2pcs Silicone Membranes Compatible with Medela Pump Parts Pump Replacement Diaphragm for PersonalFit Flex connectors Pump in Style MaxFlow Swing Maxi Freestyle Flex Breast Pumps](https://m.media-amazon.com/images/I/414SjgOpbqL.jpg)**2pcs Silicone Membranes Compatible with Medela Pump Parts Pump Replacement Diaphragm for PersonalFit Flex connectors Pump in Style MaxFlow Swing Maxi Freestyle Flex Breast Pumps**IVARONAL**$9.98**4.8★**▲ 143%**](https://www.amazon.com/dp/B0FRYR19C4) [![PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)](https://m.media-amazon.com/images/I/4128z1YBM4L.jpg)**PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)**PUMPMOM-US**$11.54**4.4★**▲ 54%**](https://www.amazon.com/dp/B0FSL5853T) [![Nenesupply10 pc Membranes Compatible with Medela Valve and Nenesupply Valve. Not Original Medela Membrane. Compatible with Pump in Style Swing Symphony Harmony Breast Pump](https://m.media-amazon.com/images/I/41dQMyHHooL.jpg)**Nenesupply10 pc Membranes Compatible with Medela Valve and Nenesupply Valve. Not Original Medela Membrane. Compatible with Pump in Style Swing Symphony Harmony Breast Pump**NENESUPPLY**$8.00**4.7★**▲ 27%**](https://www.amazon.com/dp/B00GMCZOHE) [![Medela Spare Membranes Breast Pump Replacement Parts Made Without BPA Authentic Medela Spart Parts White 6 count(Pack of 1)](https://m.media-amazon.com/images/I/31IwVODj8OL.jpg)**Medela Spare Membranes Breast Pump Replacement Parts Made Without BPA Authentic Medela Spart Parts White 6 count(Pack of 1)**Medela**$6.65**4.8★**— 3%**](https://www.amazon.com/dp/B0001CTZ8K)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -2.9% search growth over the last 90 days.

15K10KSpike '25 seasonSepDecMarJunAugNovMarMay

Peak months: Jan, Jul, Aug, Sep, Oct, Nov, Dec · busiest ÷ quietest = 14.6×

## **Reviews**

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

### **What buyers love **

**Quality-Overall**28%

*“Good quality”*

**Value For Money**19%

*“so it was nice to find an affordable option that still works well with my setup”*

**Size-Overall**18%

*“They fit perfectly”*

**Advertised Vs Actual Product**10%

*“Exactly as described”*

**Durability**6%

*“I love how durable”*

**Leak-Proof**4%

*“Everything seals properly”*

**Thickness**3%

*“They are thick”*

**Maintenance And Repair**3%

*“Good replacements”*

**Ease Of Cleaning**2%

*“Cleaning them has also been simple”*

**Ease Of Use**2%

*“Theyre easy to replace”*

### **What buyers complain about **

**Functionality-Overall**27%

*“Did not work for me”*

**Compatibility-Overall**23%

*“Not Compatible”*

**Size-Overall**12%

*“Dont fit well”*

**Advertised Vs Actual Product**9%

*“Misleading product description”*

**Value For Money**5%

*“Not waste your money on it”*

**Thickness**5%

*“They are thicker than original Medela membranes”*

**Material Quality**5%

*“the material is too rigid to work correctly with my pump-in-style”*

**Quality-Overall**5%

*“Poorly made and cheap quality”*

**Strength**5%

*“So they are weak for me”*

### **Top return reasons **

**Size-Overall**33%

**Functionality-Overall**13%

**Advertised Vs Actual Product**12%

**Defective Material/Parts**10%

**Compatibility-Overall**9%

**Product Condition**5%

**Value For Money**4%

**Filtration**3%

**Durability**2%

**Quality-Overall**2%