46
water filter cartridge
Skip itSoft demand (-10.0% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Avg price
Great$20.92avg listing price — sweet spot $15–$100
Price range
Great$10.09–$34.84cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good7.0%search→purchase rate — share of searches ending in a sale
Market size
Okay$245K$245K/yr · 169K searches
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Competition
Bad71%top-5 click share — a locked-up shelf
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad10,584.21avg incumbent reviews — the moat a new listing must climb
Growth
Bad-10.0%90-day search growth — must beat 0% to launch