47
reverse osmosis water filter replacement
Skip itBrand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size
Great$1.2M$1.2M/yr · 189K searches
Avg price
Great$96.98avg listing price — sweet spot $15–$100
Conversion
Good6.7%search→purchase rate — share of searches ending in a sale
Returns
Good2.2%return rate — above 5% kills the launch gate
Review moat
Okay1,715.13avg incumbent reviews — the moat a new listing must climb
Price range
Okay$19.31–$214.27cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay62%top-5 click share — leaders hold, buyers still browse
Growth
Bad-0.6%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad97%top-5 brand share — brand-locked demand
Signals High Price