47
sponge filter 5 gallon
Skip itBrand-locked demand (top 5 brands take 91% of clicks) — this niche doesn't clear our bar today.
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Returns
Good2.4%return rate — above 6% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good5.2%search→purchase rate — share of searches ending in a sale
Review moat
Okay1,625.64avg incumbent reviews — the moat a new listing must climb
Price range
Okay$5.91–$23.81cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$10.93avg listing price — sweet spot $15–$100
Market size
Okay$156K$156K/yr · 273K searches
Growth
Okay+1.2%90-day search growth — must beat 0% to launch
Brand share
Bad91%top-5 brand share — brand-locked demand