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8x8x1 air filter
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible13.0%search→purchase rate — share of searches ending in a sale
Review moat
Great195.3avg incumbent reviews — the moat a new listing must climb
Avg price
Great$19.76avg listing price — sweet spot $15–$100
Price range
Great$9.02–$38.42cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.0%return rate — above 5% kills the launch gate
Growth
Good+33.0%90-day search growth — must beat 0% to launch
Competition
Bad76%top-5 click share — a locked-up shelf
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Market size
Bad$20K$20K/yr · 8K searches
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals Low Review Barrier