whirlpool refrigerator water filter 4
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible20.7%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$32.96avg listing price — sweet spot $15–$100
Price range
Incredible$22.37–$50.05cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.2%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
Bad13,043.83avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad96%top-5 click share — a locked-up shelf
Brand share
Bad100%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
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.Peak months: Sep · busiest ÷ quietest = 2.2×
Top whirlpool refrigerator water filter 4 search terms
- everydrop filter 478K/yr
- whirlpool fridge water filter replacement 416K/yr
- every drop refrigerator filter 411K/yr
- whirlpool filter 48K/yr
- whirlpool water filter 47K/yr
- whirlpool refrigerator water filter 47K/yr
- everydrop water filter 46K/yr
- refrigerator filter 47K/yr
- everdrop refrigerator filter 46K/yr
- everydrop filter 4 whirlpool refrigerator4K/yr
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.
All 6 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
everydrop by Whirlpool Ice and Water Refrigerator Filter 4 EDR4RXD1 Single-Pack
EveryDrop by Whirlpool$49.534.7★41,285 rev
Waterdrop EDR4RXD1 Water Filter Replacement for EveryDrop Filter 4 3 Pack
Waterdrop$26.324.7★22,525 rev
GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack
GLACIER FRESH$24.804.7★4,125 rev
Replacement for Whirlpool EDR4RXD1 Water Filter Everydrop Filter 4 3 PACK
HMASAV$22.374.7★234 rev
Waterdrop UKF8001 Refrigerator Water Filter 4 3 Pack
Waterdrop$24.684.8★9,611 rev
Newest
by launch dateReplacement for Whirlpool EDR4RXD1 Water Filter Everydrop Filter 4 3 PACK
HMASAV$22.37234 rev
Whirlpool Refrigerator Ice and Water Filter 4 - WHR4RXD1 Single-Pack Green
Whirlpool$50.05483 rev
GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack
GLACIER FRESH$24.804,125 rev
Waterdrop UKF8001 Refrigerator Water Filter 4 3 Pack
Waterdrop$24.689,611 rev
Waterdrop EDR4RXD1 Water Filter Replacement for EveryDrop Filter 4 3 Pack
Waterdrop$26.3222,525 rev
Trending
90-day click momentumReplacement for Whirlpool EDR4RXD1 Water Filter Everydrop Filter 4 3 PACK
HMASAV$22.374.7★
Whirlpool Refrigerator Ice and Water Filter 4 - WHR4RXD1 Single-Pack Green
Whirlpool$50.054.8★
GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack
GLACIER FRESH$24.804.7★
everydrop by Whirlpool Ice and Water Refrigerator Filter 4 EDR4RXD1 Single-Pack
EveryDrop by Whirlpool$49.534.7★
Waterdrop UKF8001 Refrigerator Water Filter 4 3 Pack
Waterdrop$24.684.8★
What buyers say about whirlpool refrigerator water filter 4
What buyers praise and complain about, mined from review topics.What buyers love
“They are affordable”
“Actually fit”
“Filters work great”
“As good as the brand name”
“Just as advertised”
“Ease of install”
“Works fine”
“Easy peasy”
“It doesn't leak”
“Very durable”
What buyers complain about
“Not filtering”
“Too expensive now”
“They were just a smidgen too small”
“They leak”
“The helper for asking a question said this was compatible It is not”
“Cheap”
“Wrong description”
“I had problems with the water flow”
“It does NOT work”
“They come clogged right out of the box”
Top return reasons
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.