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20x25x4.5 air filter
Skip itBrand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible13.2%search→purchase rate — share of searches ending in a sale
Returns
Great1.3%return rate — above 5% kills the launch gate
Avg price
Great$77.56avg listing price — sweet spot $15–$100
Review moat
Good807.13avg incumbent reviews — the moat a new listing must climb
Growth
Good+40.0%90-day search growth — must beat 0% to launch
Price range
Good$37.67–$150.24cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad75%top-5 click share — a locked-up shelf
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$82K$82K/yr · 8K searches
Brand share
Bad95%top-5 brand share — brand-locked demand
Signals High Price