Water Filtration
FailPrices span $13.65–$1665.62, mostly outside the sweet spot, so Water Filtration is a Fail.
- Flapen Score
- 39 / 100Ranks 7,870 of 9,536 Tools & Home Improvement niches · −9 vs the category median of 4839
- Market size
- $157K/yr88K searches / yr
- 90-day growth
- +7.1%search demand this quarter
- Competition
- 44%top-5 click share · 24 brands · 86 sellers
Flapen Score
Water Filtration against its category
The dotted line is the Tools & Home Improvement average. Past it, Water Filtration is stronger. Inside it, weaker.
Market
The Water Filtration market on Amazon at a glance
Shoppers on Amazon United States searched for Water Filtration 88K times last year and spent an estimated $157K. The top 5 brands take 68% of clicks. Demand peaks in Nov–Dec. Flapen scores it 39 out of 100, a Fail.
01 · Demand
An estimated 0.5% of those searches ended in a purchase.
Shoppers searched for this 88K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 0.5% of those searches ended in a purchase. Searches in the last 90 days moved +7.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $157K a year.
- Searches, last 12 months
- 88K
- Growth, 90 days vs prior 90
- +7.1%
- Conversion, latest week
- 0.5%
- Market size, estimated
- $157Ka year
- Peak month
- December12.8× the quietest month
- Top search term
- puragain water filtration system24K searches a year
02 · Price
A sale here is worth $330.59.
Listings sell for $330.59 on average, from $13.65 to $1665.62. Amazon reports units sold in ranges. This niche sold 250 to 500 a year. The average listing sells 0 to 100 of them. At $330.59 that is $0 to $33K a year per listing.
- Average price
- $330.59above the $15 to $100 sweet spot
- Price range
- $13.65–$1665.62
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 250–500
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$33K
- Returns
- 3.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
98% of listings pay for placement with sponsored ads. 93% ship with Prime. On an average day, 0.4% of listings are out of stock. The average listing ranks #1,219 within Water Filtration & Softeners. It carries 5,276 reviews at 4.49 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 98%
- Prime listings
- 93%
- Out of stock, average day
- 0.4%
- Average rank
- #1,219in Water Filtration & Softeners
- Average rating
- 4.49 starsAmazon United States average 4.42 stars
- Average reviews
- 5,276per listing
- Listings tracked
- 43
04 · Newcomers
7 of last year's 8 launches cleared the first-year sales bar.
8 products launched here in the last 12 months. 7 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 61 months on average, so the names here are established.
- Launched, last 12 months
- 8
- Successful launches
- 7Amazon's first-year sales bar
- Average brand age
- 61 months
Products
Top Water Filtration 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 28, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
HQUA WF3-01 3-Stage Whole House Water Filtration System Reduces Heavy Metals (Lead Mercury Arsenic Cadmium Chromium) Chlorine Sediment Odor and VOCs
- Price
- $343.44
- Rating
- 4.4/5
- Reviews
- 182
- Age
- 2y ago

Express Water Whole House Water Filter System Ultimate Protection 3-Stage
- Price
- $505.46
- Rating
- 4.6/5
- Reviews
- 422
- Age
- 3y ago

iSpring RCC7AK-BN 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
- $209.73
- Rating
- 4.6/5
- Reviews
- 15,066
- Age
- 14y ago

Kind Water Systems E-3000 Whole House Salt-Free Water Softener & Filter for City Water
- Price
- $1665.62
- Rating
- 4.5/5
- Reviews
- 57
- Age
- 2y ago

Purewell 3-Stage 0.01m Ultra-Filtration Gravity Water Filter System NSF/ANSI 42&372 Certification 304 Stainless Steel Countertop System with 2 Filters and Stand Reduce 99% Chlorine 2.25G PW-OB
- Price
- $108.94
- Rating
- 4.4/5
- Reviews
- 1,967
- Age
- 4y ago
Trending
estimated 90-day click momentum
Whole House Water Filter System 3-Stage Home Water Filtration System Extra 2 Sets of Filters 1.5-2 Years Filter Life Reduce Chlorine Sediment Taste 3/4 Ports with 2 Valves for Well & City Water
- Price
- $184.44
- Rating
- 4.7/5
- Reviews
- 31
- Age
- 1y ago

DREO Reverse Osmosis Water Filter Countertop RO Filtration System 3:1 Pure to Drain TDS & Filter Life & Autofill Pitcher Installation-Free Self-Cleaning Water Purifier RO Water Filter
- Price
- $155.59
- Rating
- 4.4/5
- Reviews
- 495
- Age
- 6mo ago

Waterdrop WFD-03L Water Filter Dispenser TDS Reduction 35-Cup White
- Price
- $38.08
- Rating
- 4.6/5
- Reviews
- 20
- Age
- 9mo ago

BLACK+DECKER Whole House Water Filter System | Anti-Scale | 3-Stage Filtration System | Specially Designed to Prevent Scale Build-Up | Protects Appliances | IAPMO R&T Tested NSF/ANSI 42 Certified
- Price
- $366.64
- Rating
- 4.2/5
- Reviews
- 19
- Age
- 11mo ago

Kind Water Systems E-3000 Whole House Salt-Free Water Softener & Filter for City Water
- Price
- $1665.62
- Rating
- 4.5/5
- Reviews
- 57
- Age
- 2y ago
Newest
by launch date
DREO Reverse Osmosis Water Filter Countertop RO Filtration System 3:1 Pure to Drain TDS & Filter Life & Autofill Pitcher Installation-Free Self-Cleaning Water Purifier RO Water Filter
- Price
- $155.59
- Rating
- 4.4/5
- Reviews
- 495
- Age
- 6mo ago

Waterdrop WFD-03L Water Filter Dispenser TDS Reduction 35-Cup White
- Price
- $38.08
- Rating
- 4.6/5
- Reviews
- 20
- Age
- 9mo ago

BLACK+DECKER Whole House Water Filter System | Anti-Scale | 3-Stage Filtration System | Specially Designed to Prevent Scale Build-Up | Protects Appliances | IAPMO R&T Tested NSF/ANSI 42 Certified
- Price
- $366.64
- Rating
- 4.2/5
- Reviews
- 19
- Age
- 11mo ago

Waterdrop ED25TW Rechargeable Water Filter Dispenser TDS Reduction White
- Price
- $51.12
- Rating
- 4.6/5
- Reviews
- 67
- Age
- 1y ago

Whole House Water Filter System 3-Stage Home Water Filtration System Extra 2 Sets of Filters 1.5-2 Years Filter Life Reduce Chlorine Sediment Taste 3/4 Ports with 2 Valves for Well & City Water
- Price
- $184.44
- Rating
- 4.7/5
- Reviews
- 31
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 44% of clicks. Leaders hold, but buyers still shop past them.
Brands
24 falling
Sellers
86
Est. top-5 brand share
68%
Top 20: 97%
Est. top-5 click share
44%
Top 20: 78%
Open market
25%
- Waterdrop19%
- HQUA16%
- iSpring15%
- EXPRESS WATER10%
- Kind Water Systems8%
- Purewell7%
Demand
Water Filtration search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Nov, Dec · busiest ÷ quietest = 12.8×
Search terms
Top Water Filtration search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- puragain water filtration system24K/yr
- water filtration systems12K/yr
- water purification systems5K/yr
- reverse osmosis water filter whole house7K/yr
- tds water filter8K/yr
- filtration5K/yr
- water filter kit6K/yr
- charcoal water filter system5K/yr
- ultrafiltration water filter4K/yr
- tds reduction filters4K/yr
Reviews and returns
What reviews say buyers love and hate about Water Filtration
We read the reviews and the return reasons for every product selling here.
“It leaks”
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.
18 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 Filtration 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









