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17.5x23.5x1 air filter
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Avg price
Incredible$44.82avg listing price — sweet spot $15–$100
Price range
Incredible$33.39–$69.49cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great8.3%search→purchase rate — share of searches ending in a sale
Growth
Good+52.5%90-day search growth — must beat 0% to launch
Market size
Okay$164K$164K/yr · 44K searches
Review moat
Bad13,732.11avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Competition
Bad91%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand