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epson 603 ink cartridges

Worth a look

Shows searches that convert (18.7% search→purchase), but soft demand (-15.1% this quarter) keeps it on the watch list.

Market size 37Growth 17Conversion 99Competition 60Returns 97Price range 82Avg price 81Brand share 28Review moat 25Quality gap 52

Conversion

Incredible18.7%

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

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Price range

Great£6.79–£58.88

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

Avg price

Great£17.47

avg listing price — sweet spot $15–$100

Competition

Good49%

top-5 click share — leaders hold, buyers still browse

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Okay£186K

£186K/yr · 57K searches

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Review moat

Okay3,952.32

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-15.1%

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

According to Flapen's Amazon United Kingdom niche tracking, epson 603 ink cartridges is a £186K/yr Amazon United Kingdom market (57K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Jan–Sep–Oct–Nov. Verdict: Worth a look — 54/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

epson 603 ink cartridges market data

Units sold / yr
8K–10K
avg 250–500/product
Revenue / yr
£140K–£175K
units × avg price
Conversion rate
18.7%
Avg BSR
#741
Page quality
0%
Prime
96%
Sponsored
64%
Out of stock
10.9%
Avg brand age
39 months
Avg seller age
164 days

Competition & brand share

The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 flat

Sellers

130

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

49%

Top 20: 91%

Open market

9%

  • Epson55%
  • Greenjob12%
  • CATJOY11%
  • Torvon6%
  • Cartridgeify4%
  • Gureef3%
  • Open — no brand owns it (7 brands, 9%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -15.1% search growth over the last 90 days.
10K6KSpike '24Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jan, Sep, Oct, Nov · busiest ÷ quietest = 2.6×

Top epson 603 ink cartridges search terms

  • epson 603 ink cartridges12K/yr
  • 603xl ink cartridges13K/yr
  • epson 6034K/yr
  • epson 603xl ink cartridges multipack5K/yr
  • epson 603xl5K/yr
  • epson starfish ink cartridges4K/yr
  • epson workforce wf-2830 ink cartridges4K/yr
  • 603xl4K/yr
  • epson 3100 ink cartridges3K/yr
  • 603xl ink cartridges multipack3K/yr
All search terms

Top epson 603 ink cartridges 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%5%£9K10%£19K15%£28K20%£37K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about epson 603 ink cartridges

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

What buyers love

Value For Money28%

“Value for money”

Quality-Overall17%

“I found this item was consistent in quality”

Compatibility-Overall8%

“no problem with compatibility”

Print Quality8%

“Print quality very very good”

Advertised Vs Actual Product7%

“Does the job”

Cartridge/Ink Quality6%

“Good ink”

Color6%

“Colour good too”

Assembly/Installation4%

“install fine just like all other inks”

Ink Refill4%

“I am happily using the inks”

Cartridge Capacity3%

“Amazing product holds much more ink”

What buyers complain about

Functionality-Overall19%

“First new block not working”

Cartridge Capacity15%

“They only had the smallest amount of ink in them”

Value For Money14%

“Avoid at all costs”

Print Quality12%

“Inked out”

Compatibility-Overall8%

“Not compatible”

Dry/Empty Ink6%

“two of the cartridges are almost empty”

Durability4%

“Don't last 5 min”

Color4%

“only the Black works”

Quality-Overall3%

“Low Quality”

Advertised Vs Actual Product3%

“I believe they company selling them is purposefully misleading customers by doing this so buyers beware”

Top return reasons

Compatibility-Overall26%
Functionality-Overall23%
Size-Overall10%
Ink Refill10%
Cartridge/Ink Quality6%
Dry/Empty Ink5%
Print Quality4%
Color3%
Cartridge Capacity3%
Defective Material/Parts2%

Common questions

Is epson 603 ink cartridges profitable to sell on Amazon United Kingdom?
The niche generates £186K/yr across 28 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -15.1%. Flapen's verdict: Worth a look (54/100).
How competitive is the epson 603 ink cartridges niche?
13 brands and 130 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in epson 603 ink cartridges?
Top complaints mined from reviews: Functionality-Overall, Cartridge Capacity, Value For Money. The return rate is 0.6%.
When does demand for epson 603 ink cartridges peak?
Demand peaks in Jan–Sep–Oct–Nov; the busiest month runs 2.6× the quietest.
What does it cost to enter the epson 603 ink cartridges niche?
Listings span £6.79–£58.88; the average listing price is £17.47 (sweet spot $15–$100). The average incumbent carries 3,952 reviews — the moat a new listing must climb.