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52

phox water filter refill

Worth a look

Shows searches that convert (15.6% search→purchase), but brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list.

Market size 48Growth 18Conversion 97Competition 34Returns 97Price range 72Avg price 82Brand share 9Review moat 62Quality gap 60

Conversion

Incredible15.6%

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

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Avg price

Great£17.69

avg listing price — sweet spot $15–$100

Price range

Good£8.39–£32.22

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

Review moat

Good1,017.83

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Market size

Okay£259K

£259K/yr · 94K searches

Competition

Okay65%

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

Growth

Bad-14.3%

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

Brand share

Bad96%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, phox water filter refill is a £259K/yr Amazon United Kingdom market (94K searches/yr). The top 5 brands hold 96% of demand. Verdict: Worth a look — 52/100.

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

phox water filter refill market data

Units sold / yr
6K–8K
avg 500–750/product
Revenue / yr
£106K–£142K
units × avg price
Conversion rate
15.6%
Avg BSR
#139
Page quality
0%
Prime
67%
Sponsored
39%
Out of stock
37.8%
Avg brand age
46 months
Avg seller age
163 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

8 rising

Sellers

15

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

2%

  • Phox74%
  • Hopeas12%
  • livager6%
  • Draymora2%
  • Waterdrop2%
  • INVIGORATED WATER1%
  • Open — no brand owns it (2 brands, 2%)

Top phox water filter refill search terms

  • phox water filter refill44K/yr
  • phox water filter18K/yr
  • phox16K/yr
  • phox refill pack7K/yr
  • phox water filter refill alkaline6K/yr
  • phox water3K/yr
All search terms

Top phox water filter refill 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%10%£26K20%£52K30%£78K40%£104K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

What buyers say about phox water filter refill

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

What buyers love

Filtration20%

“Great filter”

Quality-Overall16%

“A good device”

Value For Money9%

“Excellent value”

Ease Of Use8%

“Easy to use”

Advertised Vs Actual Product7%

“As described”

Size-Overall7%

“It's the perfect size”

Design-Overall3%

“Good sturdy design”

Assembly/Installation2%

“Easy to install and good size”

Leak-Proof2%

“Does not leak. unlike other makes we have had”

Weight Light1%

“lift without being too heavy”

What buyers complain about

Filtration19%

“Not very good filtering”

Quality-Overall12%

“shoddy quality for the price”

Value For Money7%

“unfortunately far too expensive for me”

Leak-Proof5%

“It didnt last long before it started leaking everywhere”

Size-Overall5%

“Badly fitted lid”

Durability4%

“Broken within 2 months”

Smell3%

“No bleach smell in the tap water anymore”

Compatibility-Overall2%

“Not compatible”

Functionality-Overall2%

“Do not buy these do not work”

Instructions/User Manual/Troubleshooting2%

“straight out of the box followed the instructions”

Top return reasons

Size-Overall34%
Filtration20%
Leak-Proof8%
Defective Material/Parts7%
Functionality-Overall6%
Compatibility-Overall4%
Advertised Vs Actual Product3%
Value For Money2%
Color2%
Quality-Overall2%

Common questions

Is phox water filter refill profitable to sell on Amazon United Kingdom?
The niche generates £259K/yr across 18 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -14.3%. Flapen's verdict: Worth a look (52/100).
How competitive is the phox water filter refill niche?
8 brands and 15 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 96% of demand.
What do buyers complain about in phox water filter refill?
Top complaints mined from reviews: Filtration, Quality-Overall, Value For Money. The return rate is 0.7%.
What does it cost to enter the phox water filter refill niche?
Listings span £8.39–£32.22; the average listing price is £17.69 (sweet spot $15–$100). The average incumbent carries 1,018 reviews — the moat a new listing must climb.