Skip to content

18x36x1 Air Filter

Fail

The top 5 brands take 100% of clicks, so 18x36x1 Air Filter is a Fail.

Flapen Score
44
44 / 100
Ranks 6,173 of 9,536 Tools & Home Improvement niches · −4 vs the category median of 48
Market size
$85K/yr26K searches / yr
90-day growth
+55.2%search demand this quarter
Competition
89%top-5 click share · 3 brands · 7 sellers

Flapen Score

18x36x1 Air Filter against its category

The dotted line is the Tools & Home Improvement average. Past it, 18x36x1 Air Filter is stronger. Inside it, weaker.

44Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The 18x36x1 Air Filter market on Amazon at a glance

Shoppers on Amazon United States searched for 18x36x1 Air Filter 26K times last year and spent an estimated $85K. All 3 brands take every click. Flapen scores it 44 out of 100, a Fail.

01 · Demand

5.5% of searches ended in a purchase last week.

Shoppers searched for this 26K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 5.5% of those searches ended in a purchase. Searches in the last 90 days moved +55.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $85K a year.

Searches, last 12 months
26K
Growth, 90 days vs prior 90
+55.2%
Conversion, latest week
5.5%
Market size, estimated
$85Ka year
Top search term
18x36x1 air filter14K searches a year

02 · Price

A sale here is worth $60.04.

Listings sell for $60.04 on average, from $38.73 to $89.39. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 100 to 250 of them. At $60.04 that is $6K to $15K a year per listing.

Average price
$60.04inside the $15 to $100 sweet spot
Price range
$38.73–$89.39
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–$15K
Returns
0.4%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

88% of listings pay for placement with sponsored ads. 13% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #252 within Furnace Parts & Accessories. It carries 19,466 reviews at 4.64 stars, so a new listing needs social proof before a better product.

Sponsored listings
88%
Prime listings
13%
Out of stock, average day
0.0%
Average rank
#252in Furnace Parts & Accessories
Average rating
4.64 starsAmazon United States average 4.42 stars
Average reviews
19,466per listing
Listings tracked
8

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 73 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
73 months

Products

Top 18x36x1 Air 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 89% of clicks. A locked shelf that new listings rarely crack.

$0$9K$17K$26K$34K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

3 flat

Sellers

7

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

0%

  • Filterbuy44%
  • Filtrete40%
  • Filter King17%

Demand

18x36x1 Air Filter search demand

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

800600Spike '26DecJanFebMarAprMayJunJul

Peak months: Jun, Jul · busiest ÷ quietest = 2.8× · 8 of 12 months tracked

Search terms

Top 18x36x1 Air Filter search terms shoppers use

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

  • 18x36x1 air filter14K/yr
  • air filter 18x36x15K/yr
  • furnace filters 18x36x14K/yr
  • 18x36x1 furnace filter3K/yr

Reviews and returns

What reviews say buyers love and hate about 18x36x1 Air Filter

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

50%of positive reviews mention “Size-Overall”
0.4%of orders come back
“Perfect fit for my setup”
A buyer, on “Size-Overall”50% of positive 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.

6 topics

NegativePositive

FAQ

Common 18x36x1 Air Filter questions

Answered from the same tracked data.