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aprilaire 400 replacement filter
Skip itSoft demand (-63.0% this quarter) — this niche doesn't clear our bar today.
Conversion
Incredible16.7%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$38.91avg listing price — sweet spot $15–$100
Price range
Incredible$22.53–$62.12cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Great1.6%return rate — above 5% kills the launch gate
Review moat
Good619.67avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Bad$41K$41K/yr · 6K searches
Growth
Bad-63.0%90-day search growth — must beat 0% to launch
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand