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top fin pf-s filter cartridge
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible18.9%search→purchase rate — share of searches ending in a sale
Avg price
Good$12.10avg listing price — sweet spot $15–$100
Review moat
Okay1,995.89avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.8%return rate — above 6% kills the launch gate
Price range
Okay$8.48–$19.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$182K$182K/yr · 80K searches
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-14.0%90-day search growth — must beat 0% to launch
Competition
Bad86%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand