ws645a water filter samsung
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible22.0%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$28.33avg listing price — sweet spot $15–$100
Price range
Incredible$20.75–$37.98cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.3%return rate — above 5% kills the launch gate
Growth
Okay+3.5%90-day search growth — must beat 0% to launch
Market size
Okay$114K$114K/yr · 18K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Review moat
Bad15,053.83avg incumbent reviews — the moat a new listing must climb
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, ws645a water filter samsung is a $114K/yr Amazon United States market (18K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 40/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
ws645a water filter samsung market data
- Units sold / yr
- 4K–5K
- avg 750–1,000/product
- Revenue / yr
- $113K–$142K
- units × avg price
- Conversion rate
- 22.0%
- Avg BSR
- #33
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 60 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 rising
Sellers
18
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
96%
Top 20: 100%
Open market
0%
- Waterspecialist71%
- ICEPURE13%
- Samsung6%
- SETFEEL6%
- AQUA CREST4%
Demand & seasonality
Weekly Amazon search volume, last 99 weeks — +3.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top ws645a water filter samsung search terms
- ws645a water filter samsung10K/yr
- samsung rf27t5201sg water filter replacement4K/yr
- samsung rs27t5200sr water filter replacement2K/yr
- ws645a water filter2K/yr
Top ws645a water filter samsung 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
Waterspecialist WS645A Refrigerator Water Filter 3 Pack
Waterspecialist$27.234.7★17,011 rev
ICEPURE Water Filter Replacement for Samsung DA97-17376B HAF-QIN/EXP 3 Pack
ICEPURE$24.524.6★8,156 rev
Samsung HAF-QIN/EXP Genuine Refrigerator Water Filter Reduces 99% of Harmful Contaminants for Clean Clear Drinking Water 6-Month Life Easy Install Pack of 1
Samsung$35.324.7★43,372 rev
DA97-17376B Water Filter Replacement for Samsung Refrigerator Rs27t5200sr Rs22t5201sr rf28r7201sr Rf27t5201sr Rf29a9671sr Haf-qin/exp rf27t5241sr rf28t5001sr rf27t5201sg rf28r7351sr 2 Pack
SETFEEL$20.754.7★855 rev
Waterspecialist WS645A Refrigerator Water Filter 4 Pack
Waterspecialist$37.984.7★17,011 rev
Newest
by launch dateDA97-17376B Water Filter Replacement for Samsung Refrigerator Rs27t5200sr Rs22t5201sr rf28r7201sr Rf27t5201sr Rf29a9671sr Haf-qin/exp rf27t5241sr rf28t5001sr rf27t5201sg rf28r7351sr 2 Pack
SETFEEL$20.75855 rev
ICEPURE Water Filter Replacement for Samsung DA97-17376B HAF-QIN/EXP 3 Pack
ICEPURE$24.528,156 rev
Waterspecialist WS645A Refrigerator Water Filter 3 Pack
Waterspecialist$27.2317,011 rev
AQUA CREST AQF-FF45 Refrigerator Water Filter 3 Pack
AQUA CREST$24.203,918 rev
Waterspecialist WS645A Refrigerator Water Filter 4 Pack
Waterspecialist$37.9817,011 rev
Trending
90-day click momentumAQUA CREST AQF-FF45 Refrigerator Water Filter 3 Pack
AQUA CREST$24.204.7★
ICEPURE Water Filter Replacement for Samsung DA97-17376B HAF-QIN/EXP 3 Pack
ICEPURE$24.524.6★
DA97-17376B Water Filter Replacement for Samsung Refrigerator Rs27t5200sr Rs22t5201sr rf28r7201sr Rf27t5201sr Rf29a9671sr Haf-qin/exp rf27t5241sr rf28t5001sr rf27t5201sg rf28r7351sr 2 Pack
SETFEEL$20.754.7★
Waterspecialist WS645A Refrigerator Water Filter 4 Pack
Waterspecialist$37.984.7★
Waterspecialist WS645A Refrigerator Water Filter 3 Pack
Waterspecialist$27.234.7★
What buyers say about ws645a water filter samsung
What buyers praise and complain about, mined from review topics.What buyers love
“Awesome fit”
“Excellent Filter”
“Best value”
“Economical quality”
“as advertised”
“compatibility without worrying about leaks or issues”
“easy to use”
“It doesnt leak”
“Easy Maintenance”
“Perfect fit and water pressure asswome”
What buyers complain about
“Bad filter”
“It LEAKS”
“Wish they were cheaper”
“Did not fit”
“Did not work”
“NOT SAMSUNG CERTIFIED”
“DOES NOT FIT RF32CG5300SR”
“Doesn't look like photo”
“It did not last over a month”
“A pain to install”
Top return reasons
Common questions
- Is ws645a water filter samsung profitable to sell on Amazon United States?
- The niche generates $114K/yr across 6 tracked products. 90-day search growth is +3.5%. Flapen's verdict: Skip it (40/100).
- How competitive is the ws645a water filter samsung niche?
- 5 brands and 18 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in ws645a water filter samsung?
- Top complaints mined from reviews: Filtration, Leak-Proof, Value For Money. The return rate is 1.3%.
- When does demand for ws645a water filter samsung peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the ws645a water filter samsung niche?
- Listings span $20.75–$37.98; the average listing price is $28.33 (sweet spot $15–$100). The average incumbent carries 15,054 reviews — the moat a new listing must climb.