gravity water filter
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Avg price
Great£83.11avg listing price — sweet spot $15–$100
Review moat
Good965.57avg incumbent reviews — the moat a new listing must climb
Price range
Good£20.95–£172.26cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.9%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Market size
Okay£123K£123K/yr · 59K searches
Competition
Bad75%top-5 click share — a locked-up shelf
Growth
Bad-25.8%90-day search growth — must beat 0% to launch
Brand share
Bad98%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, gravity water filter is a £123K/yr Amazon United Kingdom market (59K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 32/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
gravity water filter market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- £104K–£125K
- units × avg price
- Conversion rate
- 2.5%
- Avg BSR
- #92
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 7.1%
- Avg brand age
- 53 months
- Avg seller age
- 196 days
Competition & brand share
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 flat
Sellers
9
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
75%
Top 20: 100%
Open market
0%
- DOULTON74%
- Waterdrop8%
- INVIGORATED WATER8%
- ULTGRT6%
- Purewell2%
- CO-Z2%
Top gravity water filter search terms
- british berkefeld water filter15K/yr
- gravity water filter17K/yr
- stainless steel water filter7K/yr
- ceramic water filter8K/yr
- berkefeld water filter5K/yr
- gravity water filter system5K/yr
- british berkefeld3K/yr
Top gravity water filter 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 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
British Berkefeld 6L Ultra Sterasyl Gravity Water Filter System
DOULTON£129.684.5★795 rev
British Berkefeld 8.5L Ultra Sterasyl Gravity Water Filter System
DOULTON£142.194.5★795 rev
British Berkefeld 7 Ultra Sterasyl Ceramic Gravity Filter Cartridge | 2 Pack| Reduces Contaminants | Suitable for All Gravity Cans | Improves Taste & Odour | NSF Certified Candle Element
DOULTON£36.834.7★1,058 rev
British Berkefeld 12L Ultra Sterasyl Gravity Water Filter System
DOULTON£162.844.5★795 rev
pH Recharge Glass Alkaline Countertop Water Filter Dispenser - 2.25 Gallons Jug - Removes Fluoride Chlorine & Impurities - Improves Water pH - Clean Healthy Drinking Water - 8.5 Litres
INVIGORATED WATER£51.624.1★2,229 rev
Newest
by launch date
2.25G Gravity Water Filtration System Countertop Water Filter 304 Stainless Steel Gravity-Fed Water Purifier with 2 Composite Ceramic Filters & Stand SQ-GTK-CCB
ULTGRT£73.281 rev
2.25G Gravity Water Filtration System 2-Stage 0.01m Ultra-Filtration Countertop Water Filter 304 Stainless Steel Gravity-Fed Water Purifier with 2 Composite Carbon Filters & Stand SQ-GTK-CUM
ULTGRT£74.300 rev
CO-Z Gravity-Fed Water Filter System 8.5L UV Countertop Water Filtration System Stainless Steel Water Purifier with 2 Carbon Filters Water Level Spigot Chamber Stand NSF/ANSI 42 Certification
CO-Z£85.54160 rev
British Berkefeld 8.5L Ultra Sterasyl Gravity Water Filter System
DOULTON£142.19795 rev
British Berkefeld 8.5L Ultra Fluoride Gravity Water Filter System
DOULTON£172.2629 rev
Trending
90-day click momentum2.25G Gravity Water Filtration System 2-Stage 0.01m Ultra-Filtration Countertop Water Filter 304 Stainless Steel Gravity-Fed Water Purifier with 2 Composite Carbon Filters & Stand SQ-GTK-CUM
ULTGRT£74.300.0★
Purewell 8 5L Gravity Water Filter System Stainless Steel Countertop with 2 Filters Stand & Water Level Window Removes 99% Chlorine for Home Camping & Survival
Purewell£127.134.6★
2.25G Gravity Water Filtration System Countertop Water Filter 304 Stainless Steel Gravity-Fed Water Purifier with 2 Composite Ceramic Filters & Stand SQ-GTK-CCB
ULTGRT£73.285.0★
CO-Z Gravity-Fed Water Filter System 8.5L UV Countertop Water Filtration System Stainless Steel Water Purifier with 2 Carbon Filters Water Level Spigot Chamber Stand NSF/ANSI 42 Certification
CO-Z£85.544.3★
British Berkefeld 8.5L Ultra Sterasyl Gravity Water Filter System
DOULTON£142.194.5★
What buyers say about gravity water filter
What buyers praise and complain about, mined from review topics.What buyers love
“The filter works well”
“Excellent Quality”
“Reasonably priced”
“Great fit”
“Easy to use”
“Great water filter looks stylish”
“Does the job”
“I love that the water comes steadily through the waterproof filter”
“It was easy to assemble”
“It works so well”
What buyers complain about
“it started leaking”
“Not as good as the Phox jug water filter”
“the adapter doesn't fit”
“I was shocked that it was worse quality then my tap as I have a water meter its was green from the tap”
“The filters are also rather expensive”
“Doesn't fit all taps”
“why on earth it can not be used on anything other than clean tap water if it does really filter all the bad out”
“then it stopped working so Im trying to send this back”
“Large unit needs space”
“Misleading”
Top return reasons
Common questions
- Is gravity water filter profitable to sell on Amazon United Kingdom?
- The niche generates £123K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -25.8%. Flapen's verdict: Skip it (32/100).
- How competitive is the gravity water filter niche?
- 6 brands and 9 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in gravity water filter?
- Top complaints mined from reviews: Leak-Proof, Filtration, Size-Overall. The return rate is 2.9%.
- What does it cost to enter the gravity water filter niche?
- Listings span £20.95–£172.26; the average listing price is £83.11 (sweet spot $15–$100). The average incumbent carries 966 reviews — the moat a new listing must climb.