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Water Deionizer

Pass

Water Deionizer scores 66 out of 100, a Pass. Shoppers spend an estimated $900K a year here, search demand grew +41.8% this quarter, and an estimated 0.9% of orders come back.

Flapen Score
66
66 / 100
Top 2% of 7,287 Automotive niches · +17 vs the category median of 49
Market size
$900K/yr390K searches / yr
90-day growth
+41.8%search demand this quarter
Competition
35%top-5 click share · 24 brands · 81 sellers

Flapen Score

Water Deionizer against its category

The dotted line is the Automotive average. Past it, Water Deionizer is stronger. Inside it, weaker.

66Pass
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Water Deionizer market on Amazon at a glance

Shoppers on Amazon United States searched for Water Deionizer 390K times last year and spent an estimated $900K. The top 5 brands take 57% of clicks. Demand peaks in Apr–May–Jun. Flapen scores it 66 out of 100, a Pass.

01 · Demand

An estimated 1.3% of those searches ended in a purchase.

Shoppers searched for this 390K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.3% of those searches ended in a purchase. Searches in the last 90 days moved +41.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $900K a year.

Searches, last 12 months
390K
Growth, 90 days vs prior 90
+41.8%
Conversion, latest week
1.3%
Market size, estimated
$900Ka year
Peak month
May1.9× the quietest month
Top search term
spotless water system for car wash57K searches a year

02 · Price

A sale here is worth $172.16.

Listings sell for $172.16 on average, from $7.68 to $581.39. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 100 to 250 of them. At $172.16 that is $17K to $43K a year per listing.

Average price
$172.16above the $15 to $100 sweet spot
Price range
$7.68–$581.39
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
100–250
Revenue per listing a year
$17K–$43K
Returns
0.9%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads and reviews.

96% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 2.8% of listings are out of stock. The average listing ranks #157 within Exterior Care. It carries 1,764 reviews at 4.11 stars, so a new listing needs social proof before a better product.

Sponsored listings
96%
Prime listings
88%
Out of stock, average day
2.8%
Average rank
#157in Exterior Care
Average rating
4.11 starsAmazon United States average 4.42 stars
Average reviews
1,764per listing
Listings tracked
51

04 · Newcomers

14 of last year's 20 launches cleared the first-year sales bar.

20 products launched here in the last 12 months. 14 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 66 months on average, so the names here are established.

Launched, last 12 months
20
Successful launches
14Amazon's first-year sales bar
Average brand age
66 months

Products

Top Water Deionizer products & what they sell for

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

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take only 35% of clicks. An open shelf where new products get seen.

Brands

24 rising

Sellers

81

Top-5 brand share

57%

Top 20: 98%

Top-5 click share

35%

Top 20: 74%

Open market

36%

  • Brand 117%
  • Brand 212%
  • Brand 311%
  • Brand 49%
  • Brand 59%
  • Brand 67%

Demand

Water Deionizer search demand

Weekly searches over the year, seasonality beneath. Pick a range.

13K8KPrime Day '24Holiday '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May, Jun · busiest ÷ quietest = 1.9×

Search terms

Top Water Deionizer search terms shoppers use

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

  • spotless water system for car wash57K/yr
  • deionized water system for car wash32K/yr
  • water deionizer for car washing34K/yr
  • spotless water system27K/yr
  • water deionizer29K/yr
  • deionized water system27K/yr
  • spot free car wash system18K/yr
  • di water filter system car wash17K/yr
  • spot free rinse15K/yr
  • deionized water filter22K/yr

Reviews and returns

What reviews say buyers love and hate about Water Deionizer

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

12%of positive reviews mention “Filtration”
10%of negative reviews mention “Filtration”
0.9%of orders come back
“Filter did not work for me”
A buyer, on “Filtration”10% 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.

19 topics

NegativePositive

FAQ

Common Water Deionizer questions

Answered from the same tracked data.