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fuel tank vent
Worth a lookShows no brand lock-in (top 5 brands take 39% of clicks), but a small market ($45K/yr) keeps it on the watch list.
Brand share
Incredible39%top-5 brand share — no brand owns this niche
Competition
Great32%top-5 click share — an open shelf
Returns
Great1.6%return rate — above 5% kills the launch gate
Review moat
Great406.1avg incumbent reviews — the moat a new listing must climb
Price range
Good$4.01–$36.14cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good$13.57avg listing price — sweet spot $15–$100
Conversion
Okay3.3%search→purchase rate — share of searches ending in a sale
Growth
Okay+8.6%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Bad$45K$45K/yr · 99K searches