Reverse Osmosis Water Filter
FailBuyers convert on only 0.7% of searches, so Reverse Osmosis Water Filter is a Fail.
- Flapen Score
- 45 / 100Ranks 1,445 of 2,225 DIY & Tools niches · −4 vs the category median of 4945
- Market size
- £314K/yr244K searches / yr
- 90-day growth
- -2.4%search demand this quarter
- Competition
- 41%top-5 click share · 15 brands · 23 sellers
Flapen Score
Reverse Osmosis Water Filter against its category
The dotted line is the DIY & Tools average. Past it, Reverse Osmosis Water Filter is stronger. Inside it, weaker.
Market
The Reverse Osmosis Water Filter market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Reverse Osmosis Water Filter 244K times last year and spent an estimated £314K. The top 5 brands take 80% of clicks. Demand peaks in Apr–Nov. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 0.7% of those searches ended in a purchase.
Shoppers searched for this 244K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 0.7% of those searches ended in a purchase. Searches in the last 90 days moved -2.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £314K a year.
- Searches, last 12 months
- 244K
- Growth, 90 days vs prior 90
- -2.4%
- Conversion, latest week
- 0.7%
- Market size, estimated
- £314Ka year
- Peak month
- November1.7× the quietest month
- Top search term
- reverse osmosis water filter125K searches a year
02 · Price
A sale here is worth £192.47.
Listings sell for £192.47 on average, from £37.08 to £520.43. Amazon reports units sold in ranges. This niche sold 750 to 1K a year. The average listing sells 0 to 100 of them. At £192.47 that is £0 to £19K a year per listing.
- Average price
- £192.47above the $15 to $100 sweet spot
- Price range
- £37.08–£520.43
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 750–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- £0–£19K
- Returns
- 3.3%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads.
92% of listings pay for placement with sponsored ads. 87% ship with Prime. On an average day, 12.4% of listings are out of stock. The average listing ranks #47 within Kitchen & Bath Fixtures. It carries 1,466 reviews at 4.32 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 92%
- Prime listings
- 87%
- Out of stock, average day
- 12.4%
- Average rank
- #47in Kitchen & Bath Fixtures
- Average rating
- 4.32 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 1,466per listing
- Listings tracked
- 38
04 · Newcomers
8 of last year's 10 launches cleared the first-year sales bar.
10 products launched here in the last 12 months. 8 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 53 months on average, so the names here are settling in.
- Launched, last 12 months
- 10
- Successful launches
- 8Amazon's first-year sales bar
- Average brand age
- 53 months
Products
Top Reverse Osmosis 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
iSpring RCC7AK NSF Certified 75 GPD Alkaline 6-Stage Reverse Osmosis System pH+ Remineralization RO Water Filter System Under Sink Patented Top-Mounted Faucet Design for Easy Installation
- Price
- £202.59
- Rating
- 4.4/5
- Reviews
- 13,698
- Age
- 12y ago
![[Alkaline Mineral] Waterdrop CoreRO Reverse Osmosis System NSF/ANSI 58 & 372 Certified 7-Stage Countertop Reverse Osmosis Water Filter No Installation Required Reduce PFAS BPA Free WD-C1SL](https://m.media-amazon.com/images/I/31QUqBorqrL.jpg)
[Alkaline Mineral] Waterdrop CoreRO Reverse Osmosis System NSF/ANSI 58 & 372 Certified 7-Stage Countertop Reverse Osmosis Water Filter No Installation Required Reduce PFAS BPA Free WD-C1SL
- Price
- £185.17
- Rating
- 4.2/5
- Reviews
- 48
- Age
- 11mo ago
![[] Waterdrop WD-A2G Countertop Reverse Osmosis System RO Portable Pure Water Tank Bottleless Water Cooler 6 Temperature Settings 3:1 Pure to Drain](https://m.media-amazon.com/images/I/41jwD2uUIyL.jpg)
[] Waterdrop WD-A2G Countertop Reverse Osmosis System RO Portable Pure Water Tank Bottleless Water Cooler 6 Temperature Settings 3:1 Pure to Drain
- Price
- £334.84
- Rating
- 4.1/5
- Reviews
- 255
- Age
- 7mo ago

CIARRA X SusGreenable Reverse Osmosis System Countertop with Instant Hot Water With 5-Stage RO Water Filter SGROF03 4.3L Tank 2300W 3-Second Heating TDS Display 2000L Capacity
- Price
- £266.88
- Rating
- 3.8/5
- Reviews
- 52
- Age
- 1y ago
![[Mineralize] Waterdrop K19 Countertop Reverse Osmosis Water Filter System Instant Hot Water Dispensers Portable No Installation 4 Temperature Options Reduce TDS 7-Stage with UV WD-K19-HG](https://m.media-amazon.com/images/I/31ig+oZLl3L.jpg)
[Mineralize] Waterdrop K19 Countertop Reverse Osmosis Water Filter System Instant Hot Water Dispensers Portable No Installation 4 Temperature Options Reduce TDS 7-Stage with UV WD-K19-HG
- Price
- £225.60
- Rating
- 4.1/5
- Reviews
- 67
- Age
- 11mo ago
Trending
estimated 90-day click momentum
Waterdrop T3-M Remineralization Reverse Osmosis System NSF/ANSI 372 Certified 9-Stage RO Water Filter 450 GPD Tankless Water Filtration System 2:1 Pure-to-Drain Ratio Plug-in Required
- Price
- £168.37
- Rating
- 4.6/5
- Reviews
- 61
- Age
- 3mo ago

AQUALTRA USF-4RF-100 SGS Certified Alkaline Reverse Osmosis System 100 GPD 3: 1 Pure to Drain Under Sink Water Filter System with Dedicated Faucet
- Price
- £150.29
- Rating
- 3.9/5
- Reviews
- 8
- Age
- 3mo ago

Jimmy R9 Pro Reverse Osmosis Water Filter System Countertop Cold and Instant Hot Water Dispenser Mineralized RO Water Purifier with 7-Stage Filtration Temperature Control UV TDS Monitor
- Price
- £401.31
- Rating
- 4.2/5
- Reviews
- 90
- Age
- 5mo ago

Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter Dual Flow NSF/ANSI 372 Certified 10-Stage 450 GPD Tankless Undersink RO Filtration System 2:1 Pure to Drain BPA Free Plug-in Required
- Price
- £197.56
- Rating
- 4.6/5
- Reviews
- 61
- Age
- 6mo ago
![[] Waterdrop WD-A2G Countertop Reverse Osmosis System RO Portable Pure Water Tank Bottleless Water Cooler 6 Temperature Settings 3:1 Pure to Drain](https://m.media-amazon.com/images/I/41jwD2uUIyL.jpg)
[] Waterdrop WD-A2G Countertop Reverse Osmosis System RO Portable Pure Water Tank Bottleless Water Cooler 6 Temperature Settings 3:1 Pure to Drain
- Price
- £334.84
- Rating
- 4.1/5
- Reviews
- 255
- Age
- 7mo ago
Newest
by launch date
AQUALTRA USF-4RF-100 SGS Certified Alkaline Reverse Osmosis System 100 GPD 3: 1 Pure to Drain Under Sink Water Filter System with Dedicated Faucet
- Price
- £150.29
- Rating
- 3.9/5
- Reviews
- 8
- Age
- 3mo ago

Waterdrop T3-M Remineralization Reverse Osmosis System NSF/ANSI 372 Certified 9-Stage RO Water Filter 450 GPD Tankless Water Filtration System 2:1 Pure-to-Drain Ratio Plug-in Required
- Price
- £168.37
- Rating
- 4.6/5
- Reviews
- 61
- Age
- 3mo ago

Jimmy R9 Pro Reverse Osmosis Water Filter System Countertop Cold and Instant Hot Water Dispenser Mineralized RO Water Purifier with 7-Stage Filtration Temperature Control UV TDS Monitor
- Price
- £401.31
- Rating
- 4.2/5
- Reviews
- 90
- Age
- 5mo ago

Waterdrop T4-A Alkaline pH+ Reverse Osmosis Water Filter Dual Flow NSF/ANSI 372 Certified 10-Stage 450 GPD Tankless Undersink RO Filtration System 2:1 Pure to Drain BPA Free Plug-in Required
- Price
- £197.56
- Rating
- 4.6/5
- Reviews
- 61
- Age
- 6mo ago
![[] Waterdrop WD-A2G Countertop Reverse Osmosis System RO Portable Pure Water Tank Bottleless Water Cooler 6 Temperature Settings 3:1 Pure to Drain](https://m.media-amazon.com/images/I/41jwD2uUIyL.jpg)
[] Waterdrop WD-A2G Countertop Reverse Osmosis System RO Portable Pure Water Tank Bottleless Water Cooler 6 Temperature Settings 3:1 Pure to Drain
- Price
- £334.84
- Rating
- 4.1/5
- Reviews
- 255
- Age
- 7mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 41% of clicks. Leaders hold, but buyers still shop past them.
Brands
15 rising
Sellers
23
Est. top-5 brand share
80%
Top 20: 100%
Est. top-5 click share
41%
Top 20: 83%
Open market
17%
- Waterdrop46%
- iSpring16%
- FRIZZLIFE7%
- SusGreenable7%
- COSTWAY5%
- Jimmy4%
- Open — no brand owns it (9 brands, 17%)
Demand
Reverse Osmosis Water Filter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, Nov · busiest ÷ quietest = 1.7×
Search terms
Top Reverse Osmosis Water Filter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- reverse osmosis water filter125K/yr
- reverse osmosis system36K/yr
- ro water filter system19K/yr
- reverse osmosis15K/yr
- reverse osmosis water filter countertop14K/yr
- reverse osmosis water filter system8K/yr
- ro filter7K/yr
- reverse osmosis water5K/yr
- ro water filter5K/yr
- waterdrop reverse osmosis3K/yr
Reviews and returns
What reviews say buyers love and hate about Reverse Osmosis 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.
17 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 Reverse Osmosis 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








