Under Sink Water Filter
FailThe top 5 brands take 95% of clicks, so Under Sink Water Filter is a Fail.
- Flapen Score
- 38 / 100Ranks 1,956 of 2,225 DIY & Tools niches · −11 vs the category median of 4938
- Market size
- £196K/yr143K searches / yr
- 90-day growth
- -2.1%search demand this quarter
- Competition
- 77%top-5 click share · 7 brands · 14 sellers
Flapen Score
Under Sink Water Filter against its category
The dotted line is the DIY & Tools average. Past it, Under Sink Water Filter is stronger. Inside it, weaker.
Market
The Under Sink Water Filter market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Under Sink Water Filter 143K times last year and spent an estimated £196K. The top 5 brands take 95% of clicks. Demand peaks in Jul–Nov. Flapen scores it 38 out of 100, a Fail.
01 · Demand
An estimated 2.4% of those searches ended in a purchase.
Shoppers searched for this 143K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 2.4% of those searches ended in a purchase. Searches in the last 90 days moved -2.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated £196K a year.
- Searches, last 12 months
- 143K
- Growth, 90 days vs prior 90
- -2.1%
- Conversion, latest week
- 2.4%
- Market size, estimated
- £196Ka year
- Peak month
- November2.0× the quietest month
- Top search term
- under sink water filter52K searches a year
02 · Price
A sale here is worth £56.64.
Listings sell for £56.64 on average, from £10.68 to £130.58. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 100 to 250 of them. At £56.64 that is £6K to £14K a year per listing.
- Average price
- £56.64inside the $15 to $100 sweet spot
- Price range
- £10.68–£130.58
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 3K–3K
- Units per listing a year
- 100–250
- Revenue per listing a year
- £6K–£14K
- Returns
- 1.8%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is reviews.
75% of listings pay for placement with sponsored ads. 92% ship with Prime. On an average day, 1.5% of listings are out of stock. The average listing ranks #9 within Kitchen & Bath Fixtures. It carries 4,558 reviews at 4.46 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 75%
- Prime listings
- 92%
- Out of stock, average day
- 1.5%
- Average rank
- #9in Kitchen & Bath Fixtures
- Average rating
- 4.46 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 4,558per listing
- Listings tracked
- 12
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 62 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 62 months
Products
Top Under Sink Water Filter 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

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 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 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 10UA-UF 0.01 m Ultra Filtration Under Sink Water Filter for Baçtria Reduction 30 000 Liters Chlorine Reduction Capacity Direct Connect to Kitchen Faucet Reduce PFAS PFOA/PFOS
- Price
- £56.99
- Rating
- 4.4/5
- Reviews
- 2,807
- Age
- 5y ago
Trending
estimated 90-day click momentum
Ibergrif Undersink Water Filter System NSF/ANSI 42 Certified Reduces Chlorine Lead Fluoride Bad Taste and Odor Quick Installation Black-M91009
- Price
- £30.99
- Rating
- 4.3/5
- Reviews
- 306
- Age
- 2y ago

GOLDEN ICEPURE 2 Pieces Refrigerator Water Filter Compatible with Samsung DA29-10105J DA29-10105J HAFEX/EXP DA99-02131B WSF-100 EF9603 HAIER LG Inline Refrigerator
- Price
- £10.68
- Rating
- 4.6/5
- Reviews
- 15,535
- Age
- 8y 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

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
Newest
by launch date
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

Ibergrif Undersink Water Filter System NSF/ANSI 42 Certified Reduces Chlorine Lead Fluoride Bad Taste and Odor Quick Installation Black-M91009
- Price
- £30.99
- Rating
- 4.3/5
- Reviews
- 306
- Age
- 2y ago

Under Sink Water Filter System High Capacity 80 000 Litres Undersink Drinking Water Filtration System Reduce Heavy Metals Chlorine Bad Taste Odours
- Price
- £49.24
- Rating
- 4.6/5
- Reviews
- 89
- Age
- 2y 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
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 77% of clicks. A locked shelf that new listings rarely crack.
Brands
7 falling
Sellers
14
Est. top-5 brand share
95%
Top 20: 100%
Est. top-5 click share
77%
Top 20: 100%
Open market
2%
- Waterdrop73%
- Water210%
- AQUA CREST6%
- Finest-Filters4%
- Finerfilters3%
- GOLDEN ICEPURE3%
- Open — no brand owns it (1 brand, 2%)
Demand
Under Sink Water Filter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jul, Nov · busiest ÷ quietest = 2.0×
Search terms
Top Under Sink Water Filter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- under sink water filter52K/yr
- inline water filter17K/yr
- under sink water filters12K/yr
- water filter under sink12K/yr
- undersink water filter system8K/yr
- under sink water filter system9K/yr
- in line water filter5K/yr
- under sink filter5K/yr
- under-sink filters5K/yr
- waterdrop under sink filter3K/yr
Reviews and returns
What reviews say buyers love and hate about Under Sink Water Filter
We read the reviews and the return reasons for every product selling here.
“Was a little sceptical with these type of filters”
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 Under Sink Water Filter 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








