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aqueon filter cartridges large
Skip itBrand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$30.57avg listing price — sweet spot $15–$100
Conversion
Great10.8%search→purchase rate — share of searches ending in a sale
Returns
Great1.3%return rate — above 6% kills the launch gate
Price range
Great$7.74–$67.29cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay3,331.38avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Growth
Okay+0.3%90-day search growth — must beat 0% to launch
Market size
Bad$64K$64K/yr · 19K searches
Brand share
Bad96%top-5 brand share — brand-locked demand