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16x24x4 furnace filter
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Price range
Incredible$43.23–$86.30cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.1%return rate — above 5% kills the launch gate
Avg price
Great$58.72avg listing price — sweet spot $15–$100
Conversion
Great10.5%search→purchase rate — share of searches ending in a sale
Growth
Good+24.1%90-day search growth — must beat 0% to launch
Market size
Okay$127K$127K/yr · 21K searches
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Competition
Bad77%top-5 click share — a locked-up shelf
Review moat
Bad15,321.62avg incumbent reviews — the moat a new listing must climb
Brand share
Bad100%top-5 brand share — brand-locked demand
Signals High Price