---
title: "Search terms — 3/8 fuel filter - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/3-8-fuel-filter/search-terms"
last_updated: "2026-08-09T20:07:03.921Z"
locale: en
meta:
  description: "Niche score 64/100 · $145K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 64/100 · $145K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Search terms — 3/8 fuel filter - Flapen"
---

# **3/8 fuel filter**

**Worth a look**

Shows searches that convert (10.0% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 31Growth 61Conversion 87Competition 46Returns 84Price range 77Avg price 75Brand share 71Review moat 79Quality gap 77

**Conversion**

**Great****10.0%**

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

**Returns**

**Great****1.6%**

return rate — above 5% kills the launch gate

**Review moat**

**Great****425.77**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Great****4.3★**

avg incumbent rating — lower means beatable quality

**Price range**

**Great****$6.28–$45.35**

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

**Avg price**

**Great****$15.01**

avg listing price — sweet spot $15–$100

**Brand share**

**Good****63%**

top-5 brand share — brands hold most of the demand

**Growth**

**Good****+36.9%**

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

**Competition**

**Okay****57%**

top-5 click share — leaders hold, buyers still browse

**Market size**

**Okay****$145K**

$145K/yr · 96K searches

## Search terms