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Calcium Water Filter

Fail

Demand is soft, at -6.6% this quarter, so Calcium Water Filter is a Fail.

Flapen Score
43
43 / 100
Ranks 6,589 of 9,536 Tools & Home Improvement niches · −5 vs the category median of 48
Market size
$117K/yr52K searches / yr
90-day growth
-6.6%search demand this quarter
Competition
61%top-5 click share · 11 brands · 40 sellers

Flapen Score

Calcium Water Filter against its category

The dotted line is the Tools & Home Improvement average. Past it, Calcium Water Filter is stronger. Inside it, weaker.

43Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Calcium Water Filter market on Amazon at a glance

Shoppers on Amazon United States searched for Calcium Water Filter 52K times last year and spent an estimated $117K. The top 5 brands take 88% of clicks. Flapen scores it 43 out of 100, a Fail.

01 · Demand

3.9% of searches ended in a purchase last week.

Shoppers searched for this 52K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 3.9% of those searches ended in a purchase. Searches in the last 90 days moved -6.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $117K a year.

Searches, last 12 months
52K
Growth, 90 days vs prior 90
-6.6%
Conversion, latest week
3.9%
Market size, estimated
$117Ka year
Top search term
hard water calcium filter10K searches a year

02 · Price

A sale here is worth $57.87.

Listings sell for $57.87 on average, from $12.60 to $372.37. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 100 to 250 of them. At $57.87 that is $6K to $14K a year per listing.

Average price
$57.87inside the $15 to $100 sweet spot
Price range
$12.60–$372.37
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
2K–2K
Units per listing a year
100–250
Revenue per listing a year
$6K–$14K
Returns
1.7%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads and reviews.

100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #103 within Bathroom Fixtures. It carries 6,256 reviews at 4.33 stars, so a new listing needs social proof before a better product.

Sponsored listings
100%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#103in Bathroom Fixtures
Average rating
4.33 starsAmazon United States average 4.42 stars
Average reviews
6,256per listing
Listings tracked
22

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 64 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
64 months

Products

Top Calcium Water Filter products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 61% of clicks. Leaders hold, but buyers still shop past them.

$0$12K$23K$35K$47K101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 falling

Sellers

40

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

61%

Top 20: 98%

Open market

9%

  • WEAQUA51%
  • H&G lifestyles16%
  • AQUA CREST10%
  • Waterdrop7%
  • Aquabliss4%
  • ICEPURE3%
  • Open — no brand owns it (5 brands, 9%)

Demand

Calcium Water Filter search demand

Weekly searches over the year. Pick a range.

1K750Spike '26May '26May '26May '26Jun '26Jun '26Jul '26Jul '26

Search terms

Top Calcium Water Filter search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • hard water calcium filter10K/yr
  • calcium water filter10K/yr
  • weaqua shower filter8K/yr
  • inline water softener7K/yr
  • chlorine removal filters4K/yr
  • chlorine water filter4K/yr
  • water filter for calcium and lime4K/yr
  • no bs shower filter2K/yr
  • weaqua heavy duty no bs shower filter3K/yr

Reviews and returns

What reviews say buyers love and hate about Calcium Water Filter

We read the reviews and the return reasons for every product selling here.

20%of positive reviews mention “Assembly/Installation”
17%of negative reviews mention “Filtration”
1.7%of orders come back
“Not a very good filter”
A buyer, on “Filtration”17% 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.

20 topics

NegativePositive

FAQ

Common Calcium Water Filter questions

Answered from the same tracked data.