44
4 inch duct
Skip itStrong incumbent ratings (4.6★) — this niche doesn't clear our bar today.
Conversion
Great9.1%search→purchase rate — share of searches ending in a sale
Avg price
Good$14.81avg listing price — sweet spot $15–$100
Price range
Good$5.54–$36.83cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Okay3.3%return rate — above 5% kills the launch gate
Brand share
Okay80%top-5 brand share — brands hold most of the demand
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Market size
Okay$177K$177K/yr · 132K searches
Growth
Okay+4.6%90-day search growth — must beat 0% to launch
Review moat
Bad4,100.67avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality