---
title: "medela flange 19mm — Niche Verdict: Skip it (35/100) | Amazon United States - Flapen"
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last_updated: "2026-07-14T03:12:53.440Z"
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  description: "prices mostly outside the sweet spot ($8.00–$15.64) — medela flange 19mm doesn't clear our bar today."
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  "og:title": "medela flange 19mm — Niche Verdict: Skip it (35/100) | Amazon United States - Flapen"
---

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# **medela flange 19mm**

**Skip it**

Prices mostly outside the sweet spot ($8.00–$15.64) — this niche doesn't clear our bar today.

Market size 15Growth 20Conversion 98Competition 15Returns 47Price range 8Avg price 55Brand share 33Review moat 27Quality gap 47

**Conversion**

**Incredible****16.5%**

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

**Avg price**

**Good****$12.58**

avg listing price — sweet spot $15–$100

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Returns**

**Okay****3.3%**

return rate — above 6% kills the launch gate

**Brand share**

**Okay****85%**

top-5 brand share — brands hold most of the demand

**Review moat**

**Okay****3,796**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-10.0%**

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

**Market size**

**Bad****$61K**

$61K/yr · 30K searches

**Competition**

**Bad****82%**

top-5 click share — a locked-up shelf

**Price range**

**Bad****$8.00–$15.64**

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

## **Competition**

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

**Brands**

**9 **▲rising

**Sellers**

**15**

**Top-5 brand share**

**85%**

**Open market**

**9%**

- PUMPMOM-US37% - NENESUPPLY26% - Zafflerva10% - Maymom6% - Suniceme6% - Medela6% - Open — no brand owns it (3 brands, 9%)

## **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%10%$6K20%$12K30%$18K40%$24K101001K10K100K 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![19mm Oval Flanges Shields Compatible with Medela Pumps Replacement Parts for Pump in Style Symphony Swing Maxi Harmony and Personalfit FlexBreast Pump Accessories](https://m.media-amazon.com/images/I/31W2ono7BjL.jpg)**19mm Oval Flanges Shields Compatible with Medela Pumps Replacement Parts for Pump in Style Symphony Swing Maxi Harmony and Personalfit FlexBreast Pump Accessories**PUMPMOM-US**$13.54**4.5★440 rev](https://www.amazon.com/dp/B0F7LJ431S) [2![Nenesupply 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 19mm Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex](https://m.media-amazon.com/images/I/41UZNEp6XLL.jpg)**Nenesupply 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace 19mm Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex**NENESUPPLY**$14.95**4.4★4,444 rev](https://www.amazon.com/dp/B0CYPFF53J) [3![19mm Oval Pump Flanges Compatible with Medela Breast Pump Replacement Parts Compatible with Pump in Style Symphony Swing Maxi Harmony and Personalfit Flex](https://m.media-amazon.com/images/I/311L+iFX+cL.jpg)**19mm Oval Pump Flanges Compatible with Medela Breast Pump Replacement Parts Compatible with Pump in Style Symphony Swing Maxi Harmony and Personalfit Flex**Zafflerva**$9.65**4.9★16 rev](https://www.amazon.com/dp/B0G3B2YXQK) [4![Maymom 19mm MyFit Shields Pano Series; Compatible with Medela Breast Pump- PersonalFit Freestyle Harmony Maxi Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector 2pcs](https://m.media-amazon.com/images/I/316VxPrpR5L.jpg)**Maymom 19mm MyFit Shields Pano Series; Compatible with Medela Breast Pump- PersonalFit Freestyle Harmony Maxi Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector 2pcs**Maymom**$15.49**4.5★8,889 rev](https://www.amazon.com/dp/B0C2BRW4N4) [5![Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS](https://m.media-amazon.com/images/I/317hKaswmrL.jpg)**Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS**Suniceme**$8.00**4.5★971 rev](https://www.amazon.com/dp/B0CW1WG42M)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![19mm Oval Pump Flanges Compatible with Medela Breast Pump Replacement Parts Compatible with Pump in Style Symphony Swing Maxi Harmony and Personalfit Flex](https://m.media-amazon.com/images/I/311L+iFX+cL.jpg)**19mm Oval Pump Flanges Compatible with Medela Breast Pump Replacement Parts Compatible with Pump in Style Symphony Swing Maxi Harmony and Personalfit Flex**Zafflerva**$9.65**16 rev6mo ago](https://www.amazon.com/dp/B0G3B2YXQK) [![MOOMentaneous 19mm Oval Flanges Breast Pump Parts Compatible with Medela Breast Pumps PersonalFit Maxflow Freestyle Flex Swing Maxi Connector](https://m.media-amazon.com/images/I/31uAQKx8OsL.jpg)**MOOMentaneous 19mm Oval Flanges Breast Pump Parts Compatible with Medela Breast Pumps PersonalFit Maxflow Freestyle Flex Swing Maxi Connector**MOOMentaneous**$12.46**207 rev1y ago](https://www.amazon.com/dp/B0DJ2SKBRS) [![2pcs 19mm Soft Rim Flanges with 106 Degree Wider Opening Angle for Medela Breast Pump PersonalFit Freestyle Maxflow Freestyle Flex Swing Maxi Connector Lansinoh Signature Pro](https://m.media-amazon.com/images/I/31CAco4JDHL.jpg)**2pcs 19mm Soft Rim Flanges with 106 Degree Wider Opening Angle for Medela Breast Pump PersonalFit Freestyle Maxflow Freestyle Flex Swing Maxi Connector Lansinoh Signature Pro**IVARONAL**$14.14**451 rev1y ago](https://www.amazon.com/dp/B0D9K3G169) [![PumpMom-us 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace Nipple Shields Flanges Compatible with Medela Pump in Style PersonalFit Symphony Freestyle Flex Swing Maxi](https://m.media-amazon.com/images/I/41ii3Yr5lML.jpg)**PumpMom-us 19mm Oval Flanges Compatible with Medela Breast Pump Parts Replace Nipple Shields Flanges Compatible with Medela Pump in Style PersonalFit Symphony Freestyle Flex Swing Maxi**PUMPMOM-US**$12.07**724 rev2y ago](https://www.amazon.com/dp/B0D1NZJNSR) [![Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS](https://m.media-amazon.com/images/I/317hKaswmrL.jpg)**Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS**Suniceme**$8.00**971 rev2y ago](https://www.amazon.com/dp/B0CW1WG42M)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![19mm Oval Pump Flanges Compatible with Medela Breast Pump Replacement Parts Compatible with Pump in Style Symphony Swing Maxi Harmony and Personalfit Flex](https://m.media-amazon.com/images/I/311L+iFX+cL.jpg)**19mm Oval Pump Flanges Compatible with Medela Breast Pump Replacement Parts Compatible with Pump in Style Symphony Swing Maxi Harmony and Personalfit Flex**Zafflerva**$9.65**4.9★**▲ 159%**](https://www.amazon.com/dp/B0G3B2YXQK) [![Maymom 19mm MyFit Shields Pano Series; Compatible with Medela Breast Pump- PersonalFit Freestyle Harmony Maxi Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector 2pcs](https://m.media-amazon.com/images/I/316VxPrpR5L.jpg)**Maymom 19mm MyFit Shields Pano Series; Compatible with Medela Breast Pump- PersonalFit Freestyle Harmony Maxi Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector 2pcs**Maymom**$15.49**4.5★**▲ 88%**](https://www.amazon.com/dp/B0C2BRW4N4) [![19mm Oval Flanges Shields Compatible with Medela Pumps Replacement Parts for Pump in Style Symphony Swing Maxi Harmony and Personalfit FlexBreast Pump Accessories](https://m.media-amazon.com/images/I/31W2ono7BjL.jpg)**19mm Oval Flanges Shields Compatible with Medela Pumps Replacement Parts for Pump in Style Symphony Swing Maxi Harmony and Personalfit FlexBreast Pump Accessories**PUMPMOM-US**$13.54**4.5★**▲ 86%**](https://www.amazon.com/dp/B0F7LJ431S) [![MOOMentaneous 19mm Oval Flanges Breast Pump Parts Compatible with Medela Breast Pumps PersonalFit Maxflow Freestyle Flex Swing Maxi Connector](https://m.media-amazon.com/images/I/31uAQKx8OsL.jpg)**MOOMentaneous 19mm Oval Flanges Breast Pump Parts Compatible with Medela Breast Pumps PersonalFit Maxflow Freestyle Flex Swing Maxi Connector**MOOMentaneous**$12.46**4.2★**▲ 41%**](https://www.amazon.com/dp/B0DJ2SKBRS) [![Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS](https://m.media-amazon.com/images/I/317hKaswmrL.jpg)**Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS**Suniceme**$8.00**4.5★**— 2%**](https://www.amazon.com/dp/B0CW1WG42M)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -10.0% search growth over the last 90 days.

1K750Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

## **Reviews**

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

### **What buyers love **

**Size-Overall**44%

*“The size is accurate”*

**Comfort-Overall**13%

*“So comfortable”*

**Quality-Overall**13%

*“High quality loved the storage case”*

**Ease Of Cleaning**5%

*“easy to clean”*

**Advertised Vs Actual Product**4%

*“measures exactly as advertised”*

**Ease Of Use**4%

*“easy to use”*

**Breastfeeding Friendly**3%

*“Great for breastfeeding and pumping”*

**Value For Money**3%

*“Good value for price”*

**Leak-Proof**2%

*“so far no leaking”*

**Durability**2%

*“Very durable”*

### **What buyers complain about **

**Size-Overall**34%

*“Doesnt fit snug”*

**Comfort-Overall**14%

*“less comfortable”*

**Quality-Overall**6%

*“Quality is a little cheaper then I was hoping for”*

**Product Condition**6%

*“Arrived used”*

**Functionality-Overall**6%

*“Didn't give a good output”*

**Compatibility-Overall**6%

*“This does not work for the Swing Maxi”*

**Durability**6%

*“Fell apart after significant use”*

**Shape/Style**3%

*“they lose their shape”*

**Ease Of Use**3%

*“less comfortable”*

**Grip**2%

*“It slipped back”*

### **Top return reasons **

**Size-Overall**72%

**Functionality-Overall**5%

**Advertised Vs Actual Product**4%

**Width**4%

**Material Quality**2%

**Defective Material/Parts**2%

**Compatibility-Overall**2%

**Value For Money**1%

**Breastfeeding Friendly**1%

**Comfort-Overall**1%