---
title: "Haf-cin Refrigerator Water Filter — $452K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/haf-cin-refrigerator-water-filter"
last_updated: "2026-08-09T08:58:52.948Z"
locale: en
meta:
description: "Niche score 46/100 · $452K/yr market · 72K searches/yr · $34.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $452K/yr market · 72K searches/yr · $34.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Haf-cin Refrigerator Water Filter — $452K/yr Amazon US Niche (2026) - Flapen"
---
# **haf-cin refrigerator water filter**
**Skip it**
Brand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.
Market size 58Growth 42Conversion 99Competition 14Returns 62Price range 95Avg price 95Brand share 9Review moat 17Quality gap 19
**Conversion**
**Incredible****18.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$34.43**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$25.33–$56.95**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$452K**
$452K/yr · 72K searches
**Growth**
**Okay****+13.6%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****18,263.44**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****96%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, haf-cin refrigerator water filter is a $452K/yr Amazon United States market (72K searches/yr). The top 5 brands hold 96% of demand. Verdict: Skip it — 46/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **haf-cin refrigerator water filter market data**
- **Units sold / yr**
- **10K–13K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$344K–$430K**
- units × avg price
- **Conversion rate**
- **18.2%**
- **Avg BSR**
- **#72**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **81 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **—flat
**Sellers**
**29**
**Top-5 brand share**
**96%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- Samsung47% - ICEPURE28% - Waterdrop10% - Waterspecialist6% - Microfilter5% - GLACIER FRESH4%
## **Demand & seasonality**
Weekly Amazon search volume, last 71 weeks — +13.6% search growth over the last 90 days.
2K1KSpike '25Prime Day '25Spike '26 seasonAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul
No pronounced peak months · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/appliances/haf-cin-refrigerator-water-filter/trend)
## **Top haf-cin refrigerator water filter search terms**
- **haf-cin/exp samsung water filter**14K/yr+17.2%17.2% conv. - **samsung water filter haf-cin/exp**10K/yr+5.7%16.9% conv. - **haf-cin samsung water filter**5K/yr+69.1%16.7% conv. - **haf-cin/exp**5K/yr+38.1%13.5% conv. - **haf-cin**4K/yr+56.4%13.8% conv. - **samsung haf-cin refrigerator water filter**5K/yr+10.2%19.7% conv. - **samsung haf-cin/exp**3K/yr+47.9%23.1% conv. - **samsung haf cin water filter**4K/yr-5.1%6.2% conv. - **haf cin samsung water filter**3K/yr+99.1%17.7% conv. - **haf cin refrigerator water filter**4K/yr-46.1%3.2% conv. [**All search terms **](https://flapen.com/research/us/appliances/haf-cin-refrigerator-water-filter/search-terms)
## **Top haf-cin refrigerator water filter products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$45K20%$90K30%$135K40%$181K1001K10K100K 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**ICEPURE Water Filter Replacement for Samsung DA29-00020B HAF-CIN/EXP 3 Pack**ICEPURE**$25.41**4.7★22,977 rev](https://www.amazon.com/dp/B00ZY6KM4E) [2**SAMSUNG Genuine Filter for Refrigerator Water and Ice Carbon Block Filtration for Clean Clear Drinking Water 6-Month Life HAF-CIN/EXP 1 Pack**Samsung**$34.97**4.7★36,526 rev](https://www.amazon.com/dp/B003N1ZSYG) [3**Samsung HAF-CIN-2P/EXP Genuine Refrigerator Water Filter Reduces 99% of Harmful Contaminants for Clean Clear Drinking Water 6-Month Life Easy Install Pack of 2**Samsung**$56.95**4.6★11,314 rev](https://www.amazon.com/dp/B004UB1NRY) [4**Waterspecialist Refrigerator Water Filter Replacement for Samsung 3 Pack**Waterspecialist**$26.09**4.7★31,441 rev](https://www.amazon.com/dp/B078WL6VFS) [5**Waterdrop Water Filter Replacement for Samsung HAF-CIN/EXP 3 Pack**Waterdrop**$26.40**4.7★29,830 rev](https://www.amazon.com/dp/B01CA34OU6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Microfilter HAF-CIN/EXP Refrigerator Water Filter Compatible with DA29-00020B Carbon Block Filtration 99% Contaminant Reduction 6-Month Life 2 Pack**Microfilter**$54.71**324 rev3y ago](https://www.amazon.com/dp/B0BYN5FG2L) [**Samsung DA29-00020B DA29-00020A HAF-CIN EXP Premium Genuine Refrigerator Water Filter (1 Pack)**Samsung**$34.13**1,222 rev7y ago](https://www.amazon.com/dp/B07M7L5D1C) [**Waterdrop WD-F27 Replacement for Samsung HAF-CIN/EXP Water Filter 3 Pack**Waterdrop**$25.86**15,504 rev8y ago](https://www.amazon.com/dp/B07F9XJXH6) [**Waterspecialist Refrigerator Water Filter Replacement for Samsung 3 Pack**Waterspecialist**$26.09**31,441 rev8y ago](https://www.amazon.com/dp/B078WL6VFS) [**Waterdrop Water Filter Replacement for Samsung HAF-CIN/EXP 3 Pack**Waterdrop**$26.40**29,830 rev9y ago](https://www.amazon.com/dp/B01CA34OU6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Microfilter HAF-CIN/EXP Refrigerator Water Filter Compatible with DA29-00020B Carbon Block Filtration 99% Contaminant Reduction 6-Month Life 2 Pack**Microfilter**$54.71**4.8★**▲ 96%**](https://www.amazon.com/dp/B0BYN5FG2L) [**ICEPURE Water Filter Replacement for Samsung DA29-00020B HAF-CIN/EXP 3 Pack**ICEPURE**$25.41**4.7★**▲ 38%**](https://www.amazon.com/dp/B00ZY6KM4E) [**Waterdrop Water Filter Replacement for Samsung HAF-CIN/EXP 3 Pack**Waterdrop**$26.40**4.7★**▲ 31%**](https://www.amazon.com/dp/B01CA34OU6) [**Samsung HAF-CIN-2P/EXP Genuine Refrigerator Water Filter Reduces 99% of Harmful Contaminants for Clean Clear Drinking Water 6-Month Life Easy Install Pack of 2**Samsung**$56.95**4.6★**▲ 21%**](https://www.amazon.com/dp/B004UB1NRY) [**Waterspecialist Refrigerator Water Filter Replacement for Samsung 3 Pack**Waterspecialist**$26.09**4.7★**▼ 12%**](https://www.amazon.com/dp/B078WL6VFS)
**~~View all trending →~~**
## **What buyers say about haf-cin refrigerator water filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**21%
*“Great water filter”*
**Size-Overall**21%
*“Fits and works as should”*
**Value For Money**19%
*“Great Value”*
**Quality-Overall**10%
*“No Complaints”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Compatibility-Overall**4%
*“Totally compatible”*
**Assembly/Installation**3%
*“No problem installing”*
**Ease Of Use**3%
*“Easy to change out”*
**Leak-Proof**2%
*“are not leaking”*
**Efficiency**2%
*“Works great”*
### **What buyers complain about **
**Filtration**38%
*“Bad filters”*
**Leak-Proof**9%
*“Filter leaks”*
**Size-Overall**8%
*“One of the filters wouldnt fit”*
**Functionality-Overall**7%
*“Dont work”*
**Quality-Overall**4%
*“Quality control is gone”*
**Value For Money**4%
*“Waste of money”*
**Instructions/User Manual/Troubleshooting**3%
*“Instructions are difficult to read”*
**Spray/Flow**2%
*“Garbage low flow”*
**Durability**2%
*“to me they seemed to not last as long”*
**Advertised Vs Actual Product**2%
*“Does not fit models listed”*
### **Top return reasons **
**Size-Overall**62%
**Compatibility-Overall**15%
**Filtration**12%
**Advertised Vs Actual Product**3%
**Functionality-Overall**2%
**Value For Money**2%
**Product Condition**1%
**Leak-Proof**1%
**Defective Material/Parts**1%
**Certifications**0%
## **Common questions**
- **Is haf-cin refrigerator water filter profitable to sell on Amazon United States?**
- The niche generates $452K/yr across 9 tracked products. 90-day search growth is +13.6%. Flapen's verdict: Skip it (46/100).
- **How competitive is the haf-cin refrigerator water filter niche?**
- 6 brands and 29 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 96% of demand.
- **What do buyers complain about in haf-cin refrigerator water filter?**
- Top complaints mined from reviews: Filtration, Leak-Proof, Size-Overall. The return rate is 2.5%.
- **When does demand for haf-cin refrigerator water filter peak?**
- Demand is steady year-round — the busiest month runs 1.8× the quietest.
- **What does it cost to enter the haf-cin refrigerator water filter niche?**
- Listings span $25.33–$56.95; the average listing price is $34.43 (sweet spot $15–$100). The average incumbent carries 18,263 reviews — the moat a new listing must climb.
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