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top fin filter cartridges
Skip itBrand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$15.20avg listing price — sweet spot $15–$100
Conversion
Good6.6%search→purchase rate — share of searches ending in a sale
Price range
Good$7.70–$32.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good45%top-5 click share — leaders hold, buyers still browse
Returns
Okay3.2%return rate — above 6% kills the launch gate
Market size
Okay$226K$226K/yr · 226K searches
Review moat
Okay3,004.77avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-17.0%90-day search growth — must beat 0% to launch
Brand share
Bad95%top-5 brand share — brand-locked demand