50
secondary air injection check valve
Worth a lookShows a thin review moat (50 avg reviews), but a small market ($54K/yr) keeps it on the watch list.
Review moat
Incredible49.63avg incumbent reviews — the moat a new listing must climb
Competition
Great34%top-5 click share — an open shelf
Brand share
Great54%top-5 brand share — no brand owns this niche
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Avg price
Great$99.51avg listing price — sweet spot $15–$100
Price range
Okay$21.28–$202.95cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.7%search→purchase rate — share of searches ending in a sale
Returns
Bad5.7%return rate — above 5% kills the launch gate
Growth
Bad-9.7%90-day search growth — must beat 0% to launch
Market size
Bad$54K$54K/yr · 20K searches