40
oil furnace filter
Skip itSoft demand (-77.3% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$23.52avg listing price — sweet spot $15–$100
Returns
Great1.1%return rate — above 5% kills the launch gate
Review moat
Great244.94avg incumbent reviews — the moat a new listing must climb
Price range
Great$8.11–$61.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.6%search→purchase rate — share of searches ending in a sale
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad72%top-5 click share — a locked-up shelf
Market size
Bad$52K$52K/yr · 40K searches
Growth
Bad-77.3%90-day search growth — must beat 0% to launch