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water filter system
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Avg price
Great£69.48avg listing price — sweet spot $15–$100
Returns
Good2.5%return rate — above 5% kills the launch gate
Market size
Good£516K£516K/yr · 379K searches
Price range
Good£24.13–£154.55cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,046.71avg incumbent reviews — the moat a new listing must climb
Conversion
Bad2.0%search→purchase rate — share of searches ending in a sale
Competition
Bad73%top-5 click share — a locked-up shelf
Growth
Bad-7.4%90-day search growth — must beat 0% to launch
Brand share
Bad98%top-5 brand share — brand-locked demand
Signals High Price