51
water filter
Worth a lookShows a $47.8M/yr market, but brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list.
Market size
Incredible$47.8M$47.8M/yr · 18.6M searches
Avg price
Great$52.76avg listing price — sweet spot $15–$100
Competition
Good50%top-5 click share — leaders hold, buyers still browse
Conversion
Good4.9%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Returns
Okay3.7%return rate — above 5% kills the launch gate
Growth
Okay+10.0%90-day search growth — must beat 0% to launch
Price range
Bad$11.15–$422.62cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Bad12,855.55avg incumbent reviews — the moat a new listing must climb
Brand share
Bad95%top-5 brand share — brand-locked demand
Signals High Price