48
heater core flush kit
Skip itSoft demand (-72.7% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$31.51avg listing price — sweet spot $15–$100
Price range
Great$9.28–$84.10cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great326.61avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.6%return rate — above 5% kills the launch gate
Conversion
Good4.9%search→purchase rate — share of searches ending in a sale
Brand share
Good72%top-5 brand share — brands hold most of the demand
Market size
Okay$183K$183K/yr · 119K searches
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Growth
Bad-72.7%90-day search growth — must beat 0% to launch
Signals Low Review Barrier