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18x22x1 air filter
Skip itBrand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Avg price
Incredible$42.08avg listing price — sweet spot $15–$100
Price range
Great$12.03–$60.73cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great7.0%search→purchase rate — share of searches ending in a sale
Growth
Good+49.9%90-day search growth — must beat 0% to launch
Market size
Bad$96K$96K/yr · 32K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Review moat
Bad15,921avg incumbent reviews — the moat a new listing must climb
Competition
Bad84%top-5 click share — a locked-up shelf
Brand share
Bad99%top-5 brand share — brand-locked demand