---
title: "Reviews — 18x30x1 air filter - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/18x30x1-air-filter/reviews"
last_updated: "2026-08-08T08:53:29.825Z"
locale: en
meta:
  description: "Niche score 60/100 · $963K/yr market · 202K searches/yr · $49.50 avg price. Clears our launch bar. Data updated Jul 2026."
  "og:description": "Niche score 60/100 · $963K/yr market · 202K searches/yr · $49.50 avg price. Clears our launch bar. Data updated Jul 2026."
  "og:title": "Reviews — 18x30x1 air filter - Flapen"
---

# **18x30x1 air filter**

**Launch it**

A $963K/yr market growing +34.3% this quarter with returns at 0.6% — clears our launch bar.

Market size 77Growth 59Conversion 86Competition 46Returns 97Price range 95Avg price 93Brand share 18Review moat 20Quality gap 23

**Returns**

**Incredible****0.6%**

return rate — above 5% kills the launch gate

**Price range**

**Incredible****$26.55–$80.11**

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

**Avg price**

**Great****$49.50**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****9.7%**

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

**Market size**

**Great****$963K**

$963K/yr · 202K searches

**Growth**

**Good****+34.3%**

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

**Competition**

**Okay****57%**

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

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Bad****12,549.33**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Bad****93%**

top-5 brand share — brand-locked demand

## Reviews