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15mm isolation valve
Skip itPrices mostly outside the sweet spot ($4.10–$13.65) — this niche doesn't clear our bar today.
Review moat
Great226.32avg incumbent reviews — the moat a new listing must climb
Returns
Great1.3%return rate — above 5% kills the launch gate
Conversion
Great9.4%search→purchase rate — share of searches ending in a sale
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Avg price
Bad£7.90avg listing price — sweet spot $15–$100
Growth
Bad-18.4%90-day search growth — must beat 0% to launch
Market size
Bad£40K£40K/yr · 54K searches
Price range
Bad£4.10–£13.65cheapest to priciest tracked listing — scored on the share inside $15–$100