phox water filter refill
Worth a lookShows searches that convert (15.6% search→purchase), but brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list.
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£17.69avg listing price — sweet spot $15–$100
Price range
Good£8.39–£32.22cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,017.83avg 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
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.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Clean Refill Pack for Phox Water Filters 3 Month Supply (Clean)
Phox£12.654.6★2,827 rev

Phox Refill Pack for Phox Filters - 3 Month Supply (Alkaline)
Phox£12.684.6★2,827 rev

Phox Wave 2.8L Water Filter Jug and Refillable Cartridge (Clean) Blue White | 3 Month Supply
Phox£29.614.5★256 rev

12pcs Activated Charcoal Water Filters Coconut Shell Chemical-Free Odor Absorbing Carbon Filter Replacements for Distillers (12PCS 3.5 * 7.5CM)
Hopeas£8.394.1★301 rev

Phox Refill Pack for Phox Filters - 3 Month Supply (Softener)
Phox£12.684.6★2,827 rev
Newest
by launch date
Returnabl Refillable Water Filter Cartridge Starter Kit Compatible with Brita Maxtra+ Jugs Includes 3 Refill Pouches (Blue)
Returnabl£19.973 rev

25 Pack Activated Charcoal Water Filters Coconut Shell Activated Carbon Filter Replacements Chemical-Free Odor Absorbing for Distillers Home Pure Water Remove Compound One Year Supply (5 * 8.5cm)
Draymora£9.628 rev

25Pcs Activated Charcoal Water Filters Coconut Shell Chemical-Free Odor Absorbing Carbon Filter Replacements for Home Pure Water Remove Compound Formaldehyde Benzene Ammonia TVOC Musty Odors(5*8.5cm)
livager£10.0413 rev

25Pack Activated Charcoal Water Filters Coconut Shell Activated Carbon Filter Sachets Chemical-Free Odor Absorbing for Home Pure Water Remove Compound(5 * 8.5cm)
livager£10.1118 rev

12pcs Activated Charcoal Water Filters Coconut Shell Chemical-Free Odor Absorbing Carbon Filter Replacements for Distillers (12PCS 3.5 * 7.5CM)
Hopeas£8.39301 rev
Trending
90-day click momentum
Returnabl Refillable Water Filter Cartridge Starter Kit Compatible with Brita Maxtra+ Jugs Includes 3 Refill Pouches (Blue)
Returnabl£19.975.0★

12pcs Activated Charcoal Water Filters Coconut Shell Chemical-Free Odor Absorbing Carbon Filter Replacements for Distillers (12PCS 3.5 * 7.5CM)
Hopeas£8.394.1★

25 Pack Activated Charcoal Water Filters Coconut Shell Activated Carbon Filter Replacements Chemical-Free Odor Absorbing for Distillers Home Pure Water Remove Compound One Year Supply (5 * 8.5cm)
Draymora£9.623.4★

Phox Wave 2.8L Water Filter Jug and Refillable Cartridge (Clean) Blue White | 3 Month Supply
Phox£29.614.5★

Waterdrop Instant Electric Water Filter Jug with a 3-Months Filter 3.5L Countertop Water Filter System Reduces Chlorine Lead Mercury Reduce PFAS PFOA/PFOS 757 Litres Blue (NOT Reduce TDS)
Waterdrop£32.224.6★
What buyers say about phox water filter refill
What buyers praise and complain about, mined from review topics.What buyers love
“Great filter”
“A good device”
“Excellent value”
“Easy to use”
“As described”
“It's the perfect size”
“Good sturdy design”
“Easy to install and good size”
“Does not leak. unlike other makes we have had”
“lift without being too heavy”
What buyers complain about
“Not very good filtering”
“shoddy quality for the price”
“unfortunately far too expensive for me”
“It didnt last long before it started leaking everywhere”
“Badly fitted lid”
“Broken within 2 months”
“No bleach smell in the tap water anymore”
“Not compatible”
“Do not buy these do not work”
“straight out of the box followed the instructions”
Top return reasons
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.