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Water Filter System

Fail

The top 5 brands take 98% of clicks, so Water Filter System is a Fail.

Flapen Score
38
38 / 100
Ranks 1,956 of 2,225 DIY & Tools niches · −11 vs the category median of 49
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.

38Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

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.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 73% of clicks. A locked shelf that new listings rarely crack.

£0£52K£103K£155K£207K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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.

13K8KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

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.

21%of positive reviews mention “Filtration”
13%of negative reviews mention “Filtration”
2.5%of orders come back
“but filter still is not very great”
A buyer, on “Filtration”13% of negative reviews mention the same topic

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

NegativePositive

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