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hayward c150s filter cartridge
Skip itA small market ($12K/yr) — this niche doesn't clear our bar today.
Review moat
Great124.67avg incumbent reviews — the moat a new listing must climb
Returns
Great1.1%return rate — above 5% kills the launch gate
Avg price
Great$80.07avg listing price — sweet spot $15–$100
Conversion
Good6.7%search→purchase rate — share of searches ending in a sale
Brand share
Good69%top-5 brand share — brands hold most of the demand
Price range
Okay$59.51–$141.36cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+14.8%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Market size
Bad$12K$12K/yr · 2K searches