48
tankless water heater descaler
Skip itSoft demand (-27.8% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible1.0%return rate — above 5% kills the launch gate
Avg price
Incredible$41.69avg listing price — sweet spot $15–$100
Conversion
Great10.6%search→purchase rate — share of searches ending in a sale
Review moat
Good577.5avg incumbent reviews — the moat a new listing must climb
Price range
Good$19.29–$133.72cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$453K$453K/yr · 103K searches
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad76%top-5 click share — a locked-up shelf
Brand share
Bad92%top-5 brand share — brand-locked demand
Growth
Bad-27.8%90-day search growth — must beat 0% to launch