---
title: "momcozy v1 pro replacement parts — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/baby-products/momcozy-v1-pro-replacement-parts"
last_updated: "2026-07-14T01:11:12.571Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — momcozy v1 pro replacement parts doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — momcozy v1 pro replacement parts doesn't clear our bar today."
  "og:title": "momcozy v1 pro replacement parts — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen"
---

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# **momcozy v1 pro replacement parts**

**Skip it**

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

Market size 17Growth 19Conversion 61Competition 13Returns 67Price range 92Avg price 94Brand share 0Review moat 71Quality gap 84

**Avg price**

**Great****$22.58**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$13.39–$60.03**

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

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Good****661.89**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Good****2.3%**

return rate — above 6% kills the launch gate

**Conversion**

**Good****5.3%**

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

**Growth**

**Bad****-12.4%**

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

**Market size**

**Bad****$69K**

$69K/yr · 58K searches

**Competition**

**Bad****85%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**5 **▲rising

**Sellers**

**9**

**Top-5 brand share**

**100%**

**Open market**

**0%**

- Momcozy39% - IVARONAL32% - CozyBabe20% - TOVVILD7% - BDICOVE3%

## **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%$7K20%$14K30%$21K40%$28K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 9 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![12PC M6 Breast Pump Replacement Accessories Including 8pcs Duckbill Valve and 4pcs Diaphragms for Momcozy Mobile Style | M6 Replace for Momcozy Pump Parts Not Original Parts 12PC Red](https://m.media-amazon.com/images/I/41Sp481za3L.jpg)**12PC M6 Breast Pump Replacement Accessories Including 8pcs Duckbill Valve and 4pcs Diaphragms for Momcozy Mobile Style | M6 Replace for Momcozy Pump Parts Not Original Parts 12PC Red**IVARONAL**$23.17**4.2★93 rev](https://www.amazon.com/dp/B0FKY95YQL) [2![Two Complete Sets Compatible with Momcozy M6 Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges) Incomplete Silicone Diaphragm Installation May Cause Leaking](https://m.media-amazon.com/images/I/41tvAkHV19L.jpg)**Two Complete Sets Compatible with Momcozy M6 Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges) Incomplete Silicone Diaphragm Installation May Cause Leaking**CozyBabe**$60.03**2.6★26 rev](https://www.amazon.com/dp/B0GKWWRPVN) [3![Momcozy Mobile Style | M6 Flange 27mm & Milk Collector Original Mobile Style | M6 Breast Pump Replacement Accessories](https://m.media-amazon.com/images/I/412ZIjn-QXL.jpg)**Momcozy Mobile Style | M6 Flange 27mm & Milk Collector Original Mobile Style | M6 Breast Pump Replacement Accessories**Momcozy**$30.43**4.4★990 rev](https://www.amazon.com/dp/B0CPJJJVXD) [4![Momcozy Mobile Style | M6 Diaphragm Original Mobile Style | M6 Breast Pump Replacement Accessories 2PCS](https://m.media-amazon.com/images/I/31+PaeaznYL.jpg)**Momcozy Mobile Style | M6 Diaphragm Original Mobile Style | M6 Breast Pump Replacement Accessories 2PCS**Momcozy**$13.39**4.4★990 rev](https://www.amazon.com/dp/B0CPJJHYYL) [5![TOVVILD 6PCS M6 Duckbill Valves & Silicone Diaphragm Compatible with Momcozy Mobile Style Not Original M6 Replacement Parts](https://m.media-amazon.com/images/I/318L2pycooL.jpg)**TOVVILD 6PCS M6 Duckbill Valves & Silicone Diaphragm Compatible with Momcozy Mobile Style Not Original M6 Replacement Parts**TOVVILD**$13.97**4.8★68 rev](https://www.amazon.com/dp/B0FDGG63L3)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Two Complete Sets Compatible with Momcozy M6 Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges) Incomplete Silicone Diaphragm Installation May Cause Leaking](https://m.media-amazon.com/images/I/41tvAkHV19L.jpg)**Two Complete Sets Compatible with Momcozy M6 Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges) Incomplete Silicone Diaphragm Installation May Cause Leaking**CozyBabe**$60.03**26 rev4mo ago](https://www.amazon.com/dp/B0GKWWRPVN) [![Momcozy M5| M6| M9 Original Replacement Accessories Food-Grade Silicone & BPA Free Original Breastfeeding Parts Inserts 21mm 4 Pack](https://m.media-amazon.com/images/I/31Ob5r0ce5L.jpg)**Momcozy M5| M6| M9 Original Replacement Accessories Food-Grade Silicone & BPA Free Original Breastfeeding Parts Inserts 21mm 4 Pack**Momcozy**$14.19**2,611 rev10mo ago](https://www.amazon.com/dp/B0FCY528NF) [![12PC M6 Breast Pump Replacement Accessories Including 8pcs Duckbill Valve and 4pcs Diaphragms for Momcozy Mobile Style | M6 Replace for Momcozy Pump Parts Not Original Parts 12PC Red](https://m.media-amazon.com/images/I/41Sp481za3L.jpg)**12PC M6 Breast Pump Replacement Accessories Including 8pcs Duckbill Valve and 4pcs Diaphragms for Momcozy Mobile Style | M6 Replace for Momcozy Pump Parts Not Original Parts 12PC Red**IVARONAL**$23.17**93 rev11mo ago](https://www.amazon.com/dp/B0FKY95YQL) [![8PC M6 Breast Pump Replacement Accessories Including 6pcs Duckbill Valve and 2pcs Diaphragms for Momcozy Mobile Style | M6 Replace for Momcozy Pump Parts Not Original Parts 8PC Red](https://m.media-amazon.com/images/I/31a862J6nZL.jpg)**8PC M6 Breast Pump Replacement Accessories Including 6pcs Duckbill Valve and 2pcs Diaphragms for Momcozy Mobile Style | M6 Replace for Momcozy Pump Parts Not Original Parts 8PC Red**IVARONAL**$19.30**93 rev11mo ago](https://www.amazon.com/dp/B0FKXS7CZZ) [![TOVVILD 6PCS M6 Duckbill Valves & Silicone Diaphragm Compatible with Momcozy Mobile Style Not Original M6 Replacement Parts](https://m.media-amazon.com/images/I/318L2pycooL.jpg)**TOVVILD 6PCS M6 Duckbill Valves & Silicone Diaphragm Compatible with Momcozy Mobile Style Not Original M6 Replacement Parts**TOVVILD**$13.97**68 rev12mo ago](https://www.amazon.com/dp/B0FDGG63L3)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Two Complete Sets Compatible with Momcozy M6 Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges) Incomplete Silicone Diaphragm Installation May Cause Leaking](https://m.media-amazon.com/images/I/41tvAkHV19L.jpg)**Two Complete Sets Compatible with Momcozy M6 Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges) Incomplete Silicone Diaphragm Installation May Cause Leaking**CozyBabe**$60.03**2.6★**▲ 191%**](https://www.amazon.com/dp/B0GKWWRPVN) [![Momcozy Mobile Style | M6 Flange 27mm & Milk Collector Original Mobile Style | M6 Breast Pump Replacement Accessories](https://m.media-amazon.com/images/I/412ZIjn-QXL.jpg)**Momcozy Mobile Style | M6 Flange 27mm & Milk Collector Original Mobile Style | M6 Breast Pump Replacement Accessories**Momcozy**$30.43**4.4★**▲ 36%**](https://www.amazon.com/dp/B0CPJJJVXD) [![Momcozy Mobile Style | M6 Valves Original Mobile Style| M6 Breast Pump Replacement Accessories 4PCS](https://m.media-amazon.com/images/I/31+11JRWWCL.jpg)**Momcozy Mobile Style | M6 Valves Original Mobile Style| M6 Breast Pump Replacement Accessories 4PCS**Momcozy**$15.23**4.4★**— 8%**](https://www.amazon.com/dp/B0CPJJDY2N) [![Momcozy M5| M6| M9 Original Replacement Accessories Food-Grade Silicone & BPA Free Original Breastfeeding Parts Inserts 21mm 4 Pack](https://m.media-amazon.com/images/I/31Ob5r0ce5L.jpg)**Momcozy M5| M6| M9 Original Replacement Accessories Food-Grade Silicone & BPA Free Original Breastfeeding Parts Inserts 21mm 4 Pack**Momcozy**$14.19**4.3★**— 2%**](https://www.amazon.com/dp/B0FCY528NF) [![2pcs Duckbill Valves and 2pcs Diaphragm Compatible with Momcozy Mobile Style M6 Replace for M6 Breast Pump Replacement Accessories Fit for Momcozy Pump Part Not Original Parts 4 Pack Red](https://m.media-amazon.com/images/I/31b3OJL3U-L.jpg)**2pcs Duckbill Valves and 2pcs Diaphragm Compatible with Momcozy Mobile Style M6 Replace for M6 Breast Pump Replacement Accessories Fit for Momcozy Pump Part Not Original Parts 4 Pack Red**BDICOVE**$13.53**4.1★**— 2%**](https://www.amazon.com/dp/B0FFM76527)

**~~View all trending →~~**

## **Demand**

Weekly Amazon search volume, last 49 weeks — -12.4% search growth over the last 90 days.

3K2KSpike '25Spike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26

## **Reviews**

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

### **What buyers love **

**Size-Overall**22%

*“The fit is good”*

**Quality-Overall**21%

*“The overall quality impressed me”*

**Compatibility-Overall**11%

*“it is compatible”*

**Ease Of Cleaning**6%

*“very easy to clean”*

**Value For Money**5%

*“are a bit more affordable”*

**Leak-Proof**4%

*“It doesn't leak at all”*

**Ease Of Use**4%

*“Easy”*

**Durability**3%

*“the materials seem durable”*

**Comfort-Overall**3%

*“Having multiple flange sizes included is very helpful for getting a more comfortable and secure fit, which can make a noticeable difference in day-to-day pumping comfort”*

**Strength**3%

*“The materials feel sturdy and durable, not flimsy or cheaply made”*

### **What buyers complain about **

**Leak-Proof**17%

*“Leak”*

**Compatibility-Overall**13%

*“NOT compatible”*

**Size-Overall**11%

*“do not fit properly”*

**Quality-Overall**7%

*“Not as good as the original”*

**Value For Money**6%

*“Price is a little higher”*

**Noise Level**4%

*“All I hear is bubbling”*

**Functionality-Overall**4%

*“Diaphragm doesnt work”*

**Material Quality**3%

*“The material is not the same as the originals”*

**Strength**3%

*“Cracked”*

**Durability**3%

*“Cracked within a day of using them”*

### **Top return reasons **

**Size-Overall**59%

**Defective Material/Parts**9%

**Advertised Vs Actual Product**8%

**Leak-Proof**7%

**Value For Money**4%

**Functionality-Overall**4%

**Breastfeeding Friendly**2%

**Product Condition**2%

**Compatibility-Overall**1%

**Width**1%