44
17x21x1 air filter
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible12.0%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$42.82avg listing price — sweet spot $15–$100
Price range
Incredible$31.88–$59.92cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.7%return rate — above 5% kills the launch gate
Growth
Good+44.3%90-day search growth — must beat 0% to launch
Review moat
Okay2,195.33avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$65K$65K/yr · 13K searches
Competition
Bad98%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand