Water Filter System
FailThe top 5 brands take 98% of clicks, so Water Filter System is a Fail.
- Flapen Score
- 38 / 100Ranks 1,956 of 2,225 DIY & Tools niches · −11 vs the category median of 4938
- Market size
- £516K/yr379K searches / yr
- 90-day growth
- -7.4%search demand this quarter
- Competition
- 73%top-5 click share · 6 brands · 17 sellers
Flapen Score
Water Filter System against its category
The dotted line is the DIY & Tools average. Past it, Water Filter System is stronger. Inside it, weaker.
Market
The Water Filter System market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Water Filter System 379K times last year and spent an estimated £516K. The top 5 brands take 98% of clicks. Flapen scores it 38 out of 100, a Fail.
01 · Demand
An estimated 2.0% of those searches ended in a purchase.
Shoppers searched for this 379K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 2.0% of those searches ended in a purchase. Searches in the last 90 days moved -7.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £516K a year.
- Searches, last 12 months
- 379K
- Growth, 90 days vs prior 90
- -7.4%
- Conversion, latest week
- 2.0%
- Market size, estimated
- £516Ka year
- Peak month
- November1.5× the quietest month
- Top search term
- water filter system97K searches a year
02 · Price
A sale here is worth £69.48.
Listings sell for £69.48 on average, from £24.13 to £154.55. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At £69.48 that is £17K to £35K a year per listing.
- Average price
- £69.48inside the $15 to $100 sweet spot
- Price range
- £24.13–£154.55
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 6K–8K
- Units per listing a year
- 250–500
- Revenue per listing a year
- £17K–£35K
- Returns
- 2.5%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
88% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 1.7% of listings are out of stock. The average listing ranks #9 within Kitchen & Bath Fixtures. It carries 3,047 reviews at 4.49 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 88%
- Out of stock, average day
- 1.7%
- Average rank
- #9in Kitchen & Bath Fixtures
- Average rating
- 4.49 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 3,047per listing
- Listings tracked
- 17
04 · Newcomers
2 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 55 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 55 months
Products
Top Water Filter System products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 22, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Waterdrop 10UA Under Sink Water Filter 11000 gallons High Capacity Water Filter System NSF/ANSI 42 Certified Reduce PFAS PFOA/PFOS Reduce Lead Chlorine Bad Taste Odor
- Price
- £49.13
- Rating
- 4.5/5
- Reviews
- 12,980
- Age
- 6y ago

Water2 Pod 2.0 Under Sink Filter - Reduces Contaminants for Filtered Better-Tasting Water. Quick & Easy to Install. Backed by Bear Grylls. Kit - Includes Capsule Flexis Smart Buzzer & Guide.
- Price
- £102.17
- Rating
- 4.5/5
- Reviews
- 301
- Age
- 1y ago

Waterdrop TSA Under Sink Water Filter System 3-Stage High Capacity Water Filtration System NSF/ANSI 42 Certified Reduce PFAS PFOA/PFOS Reduce Lead Chlorine Bad Taste
- Price
- £90.48
- Rating
- 4.4/5
- Reviews
- 6,601
- Age
- 5y ago

Water2 Fluoride Filter & Pod 2.0 Bundle Set - Reduces Impurities for Better-Tasting Water - Quick & Easy to Install - Includes Pod 2.0 & Fluoride Filter - Backed by Bear Grylls
- Price
- £154.55
- Rating
- 4.5/5
- Reviews
- 40
- Age
- 10mo ago

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)
- Price
- £32.22
- Rating
- 4.6/5
- Reviews
- 1,854
- Age
- 1y ago
Trending
estimated 90-day click momentum
Waterdrop Instant Electric Water Filter Jug with a 3-Months Filter WD-ED61B 3.5L Countertop Water Filter System Reduce 98% Chlorine and 20+ Contaminants Blue (NOT Reduce TDS)
- Price
- £32.88
- Rating
- 4.6/5
- Reviews
- 673
- Age
- 1y ago

Waterdrop 10UA PRO Under Sink Water Filter No Drilling Required Time Reminder Easy Installation Reduces Lead Chlorine Bad Taste & Odor NSF/ANSI 42 Certified 11000 Gallons Does not Lower TDS
- Price
- £52.22
- Rating
- 4.5/5
- Reviews
- 155
- Age
- 1y ago

Waterdrop TSU 0.01m Ultra-Filtration Under Sink Water Filter System 3-Stage High Capacity USA Tech Smart Panel No Waste Water 2 Years Lifetime
- Price
- £130.58
- Rating
- 4.4/5
- Reviews
- 6,601
- Age
- 6y ago

British Berkefeld 6L Ultra Sterasyl Gravity Water Filter System
- Price
- £129.68
- Rating
- 4.5/5
- Reviews
- 795
- Age
- 4y ago

Water2 Fluoride Filter & Pod 2.0 Bundle Set - Reduces Impurities for Better-Tasting Water - Quick & Easy to Install - Includes Pod 2.0 & Fluoride Filter - Backed by Bear Grylls
- Price
- £154.55
- Rating
- 4.5/5
- Reviews
- 40
- Age
- 10mo ago
Newest
by launch date
Water2 Fluoride Filter & Pod 2.0 Bundle Set - Reduces Impurities for Better-Tasting Water - Quick & Easy to Install - Includes Pod 2.0 & Fluoride Filter - Backed by Bear Grylls
- Price
- £154.55
- Rating
- 4.5/5
- Reviews
- 40
- Age
- 10mo ago

Water2 Pod 2.0 Under Sink Filter - Reduces Contaminants for Filtered Better-Tasting Water. Quick & Easy to Install. Backed by Bear Grylls. Capsule - High-Performance Replacement Filter
- Price
- £78.34
- Rating
- 4.5/5
- Reviews
- 301
- Age
- 11mo ago

Waterdrop 10UA PRO Under Sink Water Filter No Drilling Required Time Reminder Easy Installation Reduces Lead Chlorine Bad Taste & Odor NSF/ANSI 42 Certified 11000 Gallons Does not Lower TDS
- Price
- £52.22
- Rating
- 4.5/5
- Reviews
- 155
- Age
- 1y ago

Water2 Pod 2.0 Under Sink Filter - Reduces Contaminants for Filtered Better-Tasting Water. Quick & Easy to Install. Backed by Bear Grylls. Kit - Includes Capsule Flexis Smart Buzzer & Guide.
- Price
- £102.17
- Rating
- 4.5/5
- Reviews
- 301
- Age
- 1y ago

Waterdrop Instant Electric Water Filter Jug with a 3-Months Filter WD-ED61B 3.5L Countertop Water Filter System Reduce 98% Chlorine and 20+ Contaminants Blue (NOT Reduce TDS)
- Price
- £32.88
- Rating
- 4.6/5
- Reviews
- 673
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 73% of clicks. A locked shelf that new listings rarely crack.
Brands
6 falling
Sellers
17
Est. top-5 brand share
98%
Top 20: 100%
Est. top-5 click share
73%
Top 20: 100%
Open market
0%
- Waterdrop55%
- Water237%
- Finest-Filters3%
- AQUA CREST2%
- DOULTON2%
- BRITA2%
- Open — no brand owns it (0%)
Demand
Water Filter System search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Water Filter System search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- water filter system97K/yr
- under sink water filter52K/yr
- water234K/yr
- water 225K/yr
- bear grylls water filter21K/yr
- inline water filter17K/yr
- water 2 filter19K/yr
- drinking water filter14K/yr
- water2 undersink filter16K/yr
- water filter under sink12K/yr
Reviews and returns
What reviews say buyers love and hate about Water Filter System
We read the reviews and the return reasons for every product selling here.
“but filter still is not very great”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
15 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Water Filter System questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data








