---
title: "Trend — 20x20x1 air filter merv 11 - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/20x20x1-air-filter-merv-11/trend"
last_updated: "2026-08-08T09:42:31.523Z"
locale: en
meta:
  description: "Niche score 51/100 · $249K/yr market · 52K searches/yr. Brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 51/100 · $249K/yr market · 52K searches/yr. Brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Trend — 20x20x1 air filter merv 11 - Flapen"
---

# **20x20x1 air filter merv 11**

**Worth a look**

Shows searches that convert (12.9% search→purchase), but brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list.

Market size 46Growth 59Conversion 96Competition 17Returns 96Price range 95Avg price 95Brand share 9Review moat 19Quality gap 20

**Conversion**

**Incredible****12.9%**

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

**Returns**

**Incredible****0.9%**

return rate — above 5% kills the launch gate

**Avg price**

**Incredible****$37.55**

avg listing price — sweet spot $15–$100

**Price range**

**Incredible****$24.96–$48.31**

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

**Growth**

**Good****+33.7%**

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

**Market size**

**Okay****$249K**

$249K/yr · 52K searches

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Bad****15,959.67**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Bad****80%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****96%**

top-5 brand share — brand-locked demand

## Trend