---
title: "Trend — 3 inch vent cover - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/3-inch-vent-cover/trend"
last_updated: "2026-08-09T06:12:54.599Z"
locale: en
meta:
  description: "Niche score 51/100 · $66K/yr market · 68K searches/yr · $16.97 avg price. A small market ($66K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 51/100 · $66K/yr market · 68K searches/yr · $16.97 avg price. A small market ($66K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — 3 inch vent cover - Flapen"
---

# **3 inch vent cover**

**Worth a look**

Shows a thin review moat (298 avg reviews), but a small market ($66K/yr) keeps it on the watch list.

Market size 17Growth 40Conversion 64Competition 76Returns 24Price range 74Avg price 80Brand share 67Review moat 85Quality gap 40

**Review moat**

**Great****297.76**

avg incumbent reviews — the moat a new listing must climb

**Avg price**

**Great****$16.97**

avg listing price — sweet spot $15–$100

**Competition**

**Great****39%**

top-5 click share — an open shelf

**Price range**

**Good****$6.92–$38.49**

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

**Brand share**

**Good****65%**

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

**Conversion**

**Good****5.7%**

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

**Growth**

**Okay****+12.2%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Returns**

**Bad****5.2%**

return rate — above 5% kills the launch gate

**Market size**

**Bad****$66K**

$66K/yr · 68K searches

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")

## Trend