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21x21x1 air filter
Worth a lookShows 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.
Price range
Incredible$26.30–$80.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Great$54.08avg 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
Okay2,243.73avg 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
Signals High Price