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whirlpool fridge water filter replacement 4396841
Skip itA small market ($15K/yr) — this niche doesn't clear our bar today.
Conversion
Incredible17.7%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$24.22avg listing price — sweet spot $15–$100
Price range
Incredible$15.12–$28.09cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.9%return rate — above 5% kills the launch gate
Review moat
Good1,435.57avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-6.4%90-day search growth — must beat 0% to launch
Brand share
Bad96%top-5 brand share — brand-locked demand
Competition
Bad92%top-5 click share — a locked-up shelf
Market size
Bad$15K$15K/yr · 3K searches