---
title: "Products — coolant leak detection kit - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/coolant-leak-detection-kit/products"
last_updated: "2026-08-10T16:34:35.178Z"
locale: en
meta:
  description: "Niche score 36/100 · $58K/yr market · 37K searches/yr · $12.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 36/100 · $58K/yr market · 37K searches/yr · $12.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Products — coolant leak detection kit - Flapen"
---

# **coolant leak detection kit**

**Skip it**

Brand-locked demand (top 5 brands take 95% of clicks) — this niche doesn't clear our bar today.

Market size 14Growth 15Conversion 95Competition 15Returns 79Price range 35Avg price 52Brand share 12Review moat 66Quality gap 28

**Conversion**

**Incredible****12.6%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Great****1.8%**

return rate — above 5% kills the launch gate

**Review moat**

**Good****874.1**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Good****$12.26**

avg listing price — sweet spot $15–$100

**Price range**

**Okay****$6.56–$19.59**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Quality gap**

**Okay****4.6★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-20.1%**

90-day search growth — must beat 0% to launch

**Competition**

**Bad****82%**

top-5 click share — a locked-up shelf

**Market size**

**Bad****$58K**

$58K/yr · 37K searches

**Brand share**

**Bad****95%**

top-5 brand share — brand-locked demand

## Products