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s&b air filter
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Great1.0%return rate — above 5% kills the launch gate
Avg price
Great$92.76avg listing price — sweet spot $15–$100
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Market size
Okay$255K$255K/yr · 254K searches
Review moat
Okay1,884.93avg incumbent reviews — the moat a new listing must climb
Growth
Okay+3.4%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Price range
Bad$17.40–$457.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Bad1.1%search→purchase rate — share of searches ending in a sale
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price