57
whole house water filter
Worth a lookShows a $12.2M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$12.2M$12.2M/yr · 1.8M searches
Brand share
Great53%top-5 brand share — no brand owns this niche
Competition
Great34%top-5 click share — an open shelf
Returns
Good2.3%return rate — above 5% kills the launch gate
Review moat
Okay2,087.71avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Okay$277.96avg listing price — sweet spot $15–$100
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Growth
Bad-0.2%90-day search growth — must beat 0% to launch
Price range
Bad$8.86–$2436.48cheapest to priciest tracked listing — scored on the share inside $15–$100