---
title: "Whirlpool Refrigerator Water Filter 4 — $1.2M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/whirlpool-refrigerator-water-filter-4"
last_updated: "2026-08-09T09:56:21.403Z"
locale: en
meta:
description: "Niche score 49/100 · $1.2M/yr market · 174K searches/yr · $32.96 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $1.2M/yr market · 174K searches/yr · $32.96 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Whirlpool Refrigerator Water Filter 4 — $1.2M/yr Amazon US Niche (2026) - Flapen"
---
# **whirlpool refrigerator water filter 4**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 81Growth 33Conversion 100Competition 3Returns 91Price range 95Avg price 95Brand share 0Review moat 20Quality gap 17
**Conversion**
**Incredible****20.7%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$32.96**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$22.37–$50.05**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Market size**
**Great****$1.2M**
$1.2M/yr · 174K searches
**Growth**
**Okay****+6.8%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****13,043.83**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****96%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, whirlpool refrigerator water filter 4 is a $1.2M/yr Amazon United States market (174K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Sep. Verdict: Skip it — 49/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **whirlpool refrigerator water filter 4 market data**
- **Units sold / yr**
- **30K–40K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$989K–$1.3M**
- units × avg price
- **Conversion rate**
- **20.7%**
- **Avg BSR**
- **#86**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **79 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **—flat
**Sellers**
**14**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**96%**
Top 20: 100%
**Open market**
**0%**
- EveryDrop by Whirlpool58% - Waterdrop23% - GLACIER FRESH10% - HMASAV6% - Whirlpool4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 108 weeks — +6.8% search growth over the last 90 days.
9K7KSpike '24Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 2.2×
[**Open Trend **](https://flapen.com/research/us/appliances/whirlpool-refrigerator-water-filter-4/trend)
## **Top whirlpool refrigerator water filter 4 search terms**
- **everydrop filter 4**78K/yr+10.4%20.5% conv. - **whirlpool fridge water filter replacement 4**16K/yr+9.1%9.0% conv. - **every drop refrigerator filter 4**11K/yr+16.6%17.2% conv. - **whirlpool filter 4**8K/yr+7.5%13.0% conv. - **whirlpool water filter 4**7K/yr+7.6%13.0% conv. - **whirlpool refrigerator water filter 4**7K/yr-3.8%9.6% conv. - **everydrop water filter 4**6K/yr-5.9%14.7% conv. - **refrigerator filter 4**7K/yr+4.2%15.3% conv. - **everdrop refrigerator filter 4**6K/yr+3.3%16.5% conv. - **everydrop filter 4 whirlpool refrigerator**4K/yr-7.5%16.5% conv. [**All search terms **](https://flapen.com/research/us/appliances/whirlpool-refrigerator-water-filter-4/search-terms)
## **Top whirlpool refrigerator water filter 4 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%15%$178K30%$357K45%$535K60%$714K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**everydrop by Whirlpool Ice and Water Refrigerator Filter 4 EDR4RXD1 Single-Pack**EveryDrop by Whirlpool**$49.53**4.7★41,285 rev](https://www.amazon.com/dp/B00UB38V2A) [2**Waterdrop EDR4RXD1 Water Filter Replacement for EveryDrop Filter 4 3 Pack**Waterdrop**$26.32**4.7★22,525 rev](https://www.amazon.com/dp/B01CC83YAK) [3**GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack**GLACIER FRESH**$24.80**4.7★4,125 rev](https://www.amazon.com/dp/B07WTLHR8F) [4**Replacement for Whirlpool EDR4RXD1 Water Filter Everydrop Filter 4 3 PACK**HMASAV**$22.37**4.7★234 rev](https://www.amazon.com/dp/B0FNWQ73ZY) [5**Waterdrop UKF8001 Refrigerator Water Filter 4 3 Pack**Waterdrop**$24.68**4.8★9,611 rev](https://www.amazon.com/dp/B079SNL9H6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Replacement for Whirlpool EDR4RXD1 Water Filter Everydrop Filter 4 3 PACK**HMASAV**$22.37**234 rev10mo ago](https://www.amazon.com/dp/B0FNWQ73ZY) [**Whirlpool Refrigerator Ice and Water Filter 4 - WHR4RXD1 Single-Pack Green**Whirlpool**$50.05**483 rev3y ago](https://www.amazon.com/dp/B0C44DCP4R) [**GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack**GLACIER FRESH**$24.80**4,125 rev6y ago](https://www.amazon.com/dp/B07WTLHR8F) [**Waterdrop UKF8001 Refrigerator Water Filter 4 3 Pack**Waterdrop**$24.68**9,611 rev8y ago](https://www.amazon.com/dp/B079SNL9H6) [**Waterdrop EDR4RXD1 Water Filter Replacement for EveryDrop Filter 4 3 Pack**Waterdrop**$26.32**22,525 rev10y ago](https://www.amazon.com/dp/B01CC83YAK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Replacement for Whirlpool EDR4RXD1 Water Filter Everydrop Filter 4 3 PACK**HMASAV**$22.37**4.7★**▲ 14%**](https://www.amazon.com/dp/B0FNWQ73ZY) [**Whirlpool Refrigerator Ice and Water Filter 4 - WHR4RXD1 Single-Pack Green**Whirlpool**$50.05**4.8★**▲ 12%**](https://www.amazon.com/dp/B0C44DCP4R) [**GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack**GLACIER FRESH**$24.80**4.7★**— 3%**](https://www.amazon.com/dp/B07WTLHR8F) [**everydrop by Whirlpool Ice and Water Refrigerator Filter 4 EDR4RXD1 Single-Pack**EveryDrop by Whirlpool**$49.53**4.7★**— 2%**](https://www.amazon.com/dp/B00UB38V2A) [**Waterdrop UKF8001 Refrigerator Water Filter 4 3 Pack**Waterdrop**$24.68**4.8★**— 7%**](https://www.amazon.com/dp/B079SNL9H6)
**~~View all trending →~~**
## **What buyers say about whirlpool refrigerator water filter 4**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**24%
*“They are affordable”*
**Size-Overall**18%
*“Actually fit”*
**Filtration**17%
*“Filters work great”*
**Quality-Overall**12%
*“As good as the brand name”*
**Advertised Vs Actual Product**10%
*“Just as advertised”*
**Assembly/Installation**5%
*“Ease of install”*
**Efficiency**3%
*“Works fine”*
**Ease Of Use**2%
*“Easy peasy”*
**Leak-Proof**1%
*“It doesn't leak”*
**Durability**1%
*“Very durable”*
### **What buyers complain about **
**Filtration**23%
*“Not filtering”*
**Value For Money**16%
*“Too expensive now”*
**Size-Overall**13%
*“They were just a smidgen too small”*
**Leak-Proof**7%
*“They leak”*
**Compatibility-Overall**6%
*“The helper for asking a question said this was compatible It is not”*
**Quality-Overall**5%
*“Cheap”*
**Advertised Vs Actual Product**4%
*“Wrong description”*
**Spray/Flow**3%
*“I had problems with the water flow”*
**Functionality-Overall**3%
*“It does NOT work”*
**Jamming/Clogging**2%
*“They come clogged right out of the box”*
### **Top return reasons **
**Size-Overall**45%
**Compatibility-Overall**21%
**Filtration**18%
**Value For Money**3%
**Advertised Vs Actual Product**2%
**Functionality-Overall**2%
**Product Condition**2%
**Connectivity-Overall**1%
**Leak-Proof**1%
**Defective Material/Parts**1%
## **Common questions**
- **Is whirlpool refrigerator water filter 4 profitable to sell on Amazon United States?**
- The niche generates $1.2M/yr across 6 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.8%. Flapen's verdict: Skip it (49/100).
- **How competitive is the whirlpool refrigerator water filter 4 niche?**
- 5 brands and 14 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in whirlpool refrigerator water filter 4?**
- Top complaints mined from reviews: Filtration, Value For Money, Size-Overall. The return rate is 1.2%.
- **When does demand for whirlpool refrigerator water filter 4 peak?**
- Demand peaks in Sep; the busiest month runs 2.2× the quietest.
- **What does it cost to enter the whirlpool refrigerator water filter 4 niche?**
- Listings span $22.37–$50.05; the average listing price is $32.96 (sweet spot $15–$100). The average incumbent carries 13,044 reviews — the moat a new listing must climb.
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