30
air filter cover
Skip itBrand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Review moat
Good816.38avg incumbent reviews — the moat a new listing must climb
Returns
Good2.5%return rate — above 5% kills the launch gate
Avg price
Good$13.45avg listing price — sweet spot $15–$100
Conversion
Good5.3%search→purchase rate — share of searches ending in a sale
Price range
Good$5.21–$29.44cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$63K$63K/yr · 88K searches
Growth
Bad-28.4%90-day search growth — must beat 0% to launch
Competition
Bad90%top-5 click share — a locked-up shelf
Brand share
Bad97%top-5 brand share — brand-locked demand