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52

21x21x1 air filter

Worth a look

Shows sweet-spot pricing room ($26.30–$80.70), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 53Growth 71Conversion 82Competition 20Returns 83Price range 95Avg price 92Brand share 0Review moat 43Quality gap 20

Price range

Incredible$26.30–$80.70

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Great$54.08

avg listing price — sweet spot $15–$100

Returns

Great1.6%

return rate — above 5% kills the launch gate

Conversion

Great8.8%

search→purchase rate — share of searches ending in a sale

Growth

Good+53.4%

90-day search growth — must beat 0% to launch

Market size

Good$348K

$348K/yr · 73K searches

Review moat

Okay2,243.73

avg incumbent reviews — the moat a new listing must climb

Competition

Bad77%

top-5 click share — a locked-up shelf

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Brand share

Bad100%

top-5 brand share — brand-locked demand

Search terms