---
title: "Search terms — 16x25x3 furnace filter - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/16x25x3-furnace-filter/search-terms"
last_updated: "2026-08-08T08:00:27.162Z"
locale: en
meta:
  description: "Niche score 52/100 · $145K/yr market · 22K searches/yr. Brand-locked demand (top 5 brands take 99% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 52/100 · $145K/yr market · 22K searches/yr. Brand-locked demand (top 5 brands take 99% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Search terms — 16x25x3 furnace filter - Flapen"
---

# **16x25x3 furnace filter**

**Worth a look**

Shows low returns (0.5%), but brand-locked demand (top 5 brands take 99% of clicks) keeps it on the watch list.

Market size 31Growth 51Conversion 91Competition 36Returns 98Price range 95Avg price 90Brand share 3Review moat 46Quality gap 37

**Returns**

**Incredible****0.5%**

return rate — above 5% kills the launch gate

**Price range**

**Incredible****$34.21–$73.29**

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

**Conversion**

**Great****11.0%**

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

**Avg price**

**Great****$58.77**

avg listing price — sweet spot $15–$100

**Growth**

**Good****+21.9%**

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

**Review moat**

**Okay****1,930**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****64%**

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

**Market size**

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

$145K/yr · 22K searches

**Brand share**

**Bad****99%**

top-5 brand share — brand-locked demand

**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Search terms