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berkey filter replacement
Skip itBrand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.
Market size
Incredible$7.6M$7.6M/yr · 1.0M searches
Returns
Good2.8%return rate — above 5% kills the launch gate
Review moat
Good1,376avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Okay$229.30avg listing price — sweet spot $15–$100
Conversion
Okay3.2%search→purchase rate — share of searches ending in a sale
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Growth
Bad-9.5%90-day search growth — must beat 0% to launch
Price range
Bad$29.78–$470.91cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad96%top-5 brand share — brand-locked demand
Signals High Price