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washable air filter
Skip itWeak search conversion (1.5%) — this niche doesn't clear our bar today.
Avg price
Incredible$31.59avg listing price — sweet spot $15–$100
Price range
Great$10.07–$55.47cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.6%return rate — above 5% kills the launch gate
Growth
Good+28.5%90-day search growth — must beat 0% to launch
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Review moat
Okay1,998.24avg incumbent reviews — the moat a new listing must climb
Market size
Okay$104K$104K/yr · 218K searches
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale