21x21x1 Air Filter

Shoppers searched for this 73K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.8% of those searches ended in a purchase. Searches in the last 90 days moved +53.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $348K a year.

Searches, last 12 months

73K

Growth, 90 days vs prior 90

+53.4%

Conversion, latest week

8.8%

Market size, estimated

$348Ka year

Peak month

July1.8× the quietest month

Top search term

21x21x1 air filter36K searches a year

Listings sell for $54.08 on average, from $26.30 to $80.70. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 500 to 750 of them. At $54.08 that is $27K to $41K a year per listing.

Average price

$54.08inside the $15 to $100 sweet spot

Price range

$26.30–$80.70

Amazon United States median price

$24.38across 115,062 niches

Units sold a year

6K–8K

Units per listing a year

500–750

Revenue per listing a year

$27K–$41K

Returns

1.6%of orders · Amazon United States median 2.1%

73% of listings pay for placement with sponsored ads. 64% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #278 within Furnace Parts & Accessories. It carries 2,244 reviews at 4.68 stars, so a new listing needs social proof before a better product.

Sponsored listings

73%

Prime listings

64%

Out of stock, average day

0.0%

Average rank

#278in Furnace Parts & Accessories

Average rating

4.68 starsAmazon United States average 4.42 stars

Average reviews

2,244per listing

Listings tracked

11

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 60 months on average, so the names here are established.

Launched, last 12 months

1

Successful launches

1Amazon's first-year sales bar

Average brand age

60 months