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Epson 603 Ink Cartridges

Epson 603 Ink Cartridges shows searches that convert (18.7% search→purchase), but soft demand (-15.1% this quarter) keeps it on the watch list.

Flapen Score

54
Worth a look
Market size 37Growth 17Conversion 99Competition 60Returns 97Price range 82Avg price 81Brand share 28Review moat 25Quality gap 52
This niche Category average

Is Epson 603 Ink Cartridges profitable on Amazon?

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.

Epson 603 Ink Cartridges: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -15.1% over the last 90 days and 18.7% of searches end in a purchase.

£186K

revenue / yr

Units sold / yr10K
Search volume / yr-15.1%57K
Conversion rate18.7%
Avg price£17.47

Who owns the niche?

The top 5 brands hold 88% of demand, so 12% of the market is open.

12%

open market share

Brands · sellers13 · 130
Top-5 product click share49%
Open market12%
Avg brand age39 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.

0/100

page quality · 28 products

Sponsored placement64%
New entrants (1y)3· 1 succeeded
Avg rating4.4★
Avg reviews3,952

Top Epson 603 Ink Cartridges products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

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

£0£9K£19K£28K£37K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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%)

Epson 603 Ink Cartridges demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume57KCVR18.7%Products28Brands13Top 5 Brands88%OOS Rate10.9%Rating4.4★Reviews3,952Avg BSR#741
10K6KSpike '24Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

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

Top Epson 603 Ink Cartridges search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • 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

What reviews say buyers love and hate about Epson 603 Ink Cartridges

What buyers mention most, as a share of all reviews.

What buyers love

91% of reviews
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

What buyers complain about

86% of reviews
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

Epson 603 Ink Cartridges return rate & reasons

Why buyers send it back, as a share of all return requests.

0.6%

Return rate

15%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Compatibility-Overall
26%
2Functionality-Overall
23%
3Size-Overall
10%
4Ink Refill
10%
5Cartridge/Ink Quality
6%

Common Epson 603 Ink Cartridges questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Epson 603 Ink Cartridges 54/100 on Amazon United Kingdom — Worth a look. The niche generates £186K/yr across 28 tracked products. 1 of 3 products launched in the last 360 days are still selling. Search demand moved -15.1% over the last 90 days.
Search demand for Epson 603 Ink Cartridges on Amazon United Kingdom peaks in Jan–Sep–Oct–Nov, where the busiest month runs 2.6× the quietest.