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19 7/8 X 21 1/2 X1 Ac Filter

Maybe

Buyers convert on 16.9% of searches. But the top 5 brands take 100% of clicks, so 19 7/8 X 21 1/2 X1 Ac Filter is a Maybe.

Flapen Score
50
50 / 100
Top 39% of 9,536 Tools & Home Improvement niches · +2 vs the category median of 48
Market size
$174K/yr21K searches / yr
90-day growth
+36.6%search demand this quarter
Competition
73%top-5 click share · 5 brands · 12 sellers

Flapen Score

19 7/8 X 21 1/2 X1 Ac Filter against its category

The dotted line is the Tools & Home Improvement average. Past it, 19 7/8 X 21 1/2 X1 Ac Filter is stronger. Inside it, weaker.

50Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 19 7/8 X 21 1/2 X1 Ac Filter market on Amazon at a glance

Shoppers on Amazon United States searched for 19 7/8 X 21 1/2 X1 Ac Filter 21K times last year and spent an estimated $174K. All 5 brands take every click. Demand peaks in Jul–Aug. Flapen scores it 50 out of 100, a Maybe.

01 · Demand

16.9% of searches ended in a purchase last week.

Shoppers searched for this 21K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 16.9% of those searches ended in a purchase. Searches in the last 90 days moved +36.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $174K a year.

Searches, last 12 months
21K
Growth, 90 days vs prior 90
+36.6%
Conversion, latest week
16.9%
Market size, estimated
$174Ka year
Peak month
August2.2× the quietest month
Top search term
19 7/8 x 21 1/2 x 1 air filter17K searches a year

02 · Price

A sale here is worth $49.44.

Listings sell for $49.44 on average, from $33.56 to $66.74. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 100 to 250 of them. At $49.44 that is $5K to $12K a year per listing.

Average price
$49.44inside the $15 to $100 sweet spot
Price range
$33.56–$66.74
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
3K–4K
Units per listing a year
100–250
Revenue per listing a year
$5K–$12K
Returns
1.4%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

83% of listings pay for placement with sponsored ads. 75% ship with Prime. On an average day, 8.6% of listings are out of stock. The average listing ranks #256 within Furnace Parts & Accessories. It carries 1,732 reviews at 4.70 stars, so a new listing needs social proof before a better product.

Sponsored listings
83%
Prime listings
75%
Out of stock, average day
8.6%
Average rank
#256in Furnace Parts & Accessories
Average rating
4.70 starsAmazon United States average 4.42 stars
Average reviews
1,732per 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 19 7/8 X 21 1/2 X1 Ac 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 73% of clicks. A locked shelf that new listings rarely crack.

$0$17K$35K$52K$70K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

12

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

73%

Top 20: 100%

Open market

0%

  • Aerostar76%
  • Chenzhit12%
  • Glasfloss5%
  • Qingzhug3%
  • Filtrete3%
  • Open — no brand owns it (0%)

Demand

19 7/8 X 21 1/2 X1 Ac Filter search demand

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

800600Black Friday '24Spike '25Prime Day '25Spike '26DecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 2.2×

Search terms

Top 19 7/8 X 21 1/2 X1 Ac Filter search terms shoppers use

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

  • 19 7/8 x 21 1/2 x 1 air filter17K/yr
  • ac filter 19 7/8 x 21 1/2 x13K/yr
  • air filter 19 7/8 x 21 1/2 x 1743/yr

Reviews and returns

What reviews say buyers love and hate about 19 7/8 X 21 1/2 X1 Ac Filter

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

21%of positive reviews mention “Filtration”
31%of negative reviews mention “Strength”
1.4%of orders come back
“Flimsy and cheaply made”
A buyer, on “Strength”31% 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.

18 topics

NegativePositive

FAQ

Common 19 7/8 X 21 1/2 X1 Ac Filter questions

Answered from the same tracked data.