---
title: "19.5x19.5x1 Air Filter — $80K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/19-5x19-5x1-air-filter"
last_updated: "2026-08-08T12:33:06.338Z"
locale: en
meta:
description: "Niche score 48/100 · $80K/yr market · 15K searches/yr · $44.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $80K/yr market · 15K searches/yr · $44.55 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "19.5x19.5x1 Air Filter — $80K/yr Amazon US Niche (2026) - Flapen"
---
# **19.5x19.5x1 air filter**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 20Growth 66Conversion 95Competition 3Returns 98Price range 95Avg price 95Brand share 0Review moat 67Quality gap 23
**Returns**
**Incredible****0.5%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$44.55**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$34.04–$53.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****800.33**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+45.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$80K**
$80K/yr · 15K searches
**Competition**
**Bad****96%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 19.5x19.5x1 air filter is a $80K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 48/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **19.5x19.5x1 air filter market data**
- **Units sold / yr**
- **2K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$89K–$111K**
- units × avg price
- **Conversion rate**
- **12.3%**
- **Avg BSR**
- **#271**
- **Page quality**
- **0%**
- **Prime**
- **17%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **79 months**
- **Avg seller age**
- **209 days**
## **Competition & brand share**
The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▼falling
**Sellers**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**96%**
Top 20: 100%
**Open market**
**0%**
- Filter King95% - Aerostar5%
## **Demand**
Weekly Amazon search volume, last 51 weeks — +45.9% search growth over the last 90 days.
500300Spike '25Spike '26Aug '25Sep '25Nov '25Jan '26Mar '26May '26
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/19-5x19-5x1-air-filter/trend)
## **Top 19.5x19.5x1 air filter search terms**
- **19.5x19.5x1 air filter**9K/yr+65.5%7.6% conv. - **19.5 x 19.5 air filter**3K/yr-16.7%8.9% conv. - **19 1/2 x 19 1/2 x 1 air filter**2K/yr+75.1%6.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/19-5x19-5x1-air-filter/search-terms)
## **Top 19.5x19.5x1 air filter products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$12K30%$24K45%$36K60%$48K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Filter King 19.5x19.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$38.91**4.7★1,569 rev](https://www.amazon.com/dp/B07FQYMDN4) [2**Filter King 19.5x19.5x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$50.35**4.6★39 rev](https://www.amazon.com/dp/B07HFG7G2F) [3**Filter King 19.5x19.5x1 Air Filter (MERV 8) (3-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$34.04**4.7★1,771 rev](https://www.amazon.com/dp/B0BV4XQCL7) [4**Filter King 19.5x19.5x1 Air Filter (MERV 11) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$53.04**4.6★810 rev](https://www.amazon.com/dp/B07J6T17V6) [5**Aerostar 19.5x19.5x1 MERV 8 - 4 Count - High Efficiency Pleated HVAC Furnace & Air Conditioner Filters - Removes Dust Lint Mold & Allergy-Causing Pollen**Aerostar**$38.76**4.7★378 rev](https://www.amazon.com/dp/B07TWNSQ8H)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Filter King 19.5x19.5x1 Air Filter (MERV 13) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$52.17**235 rev1w ago](https://www.amazon.com/dp/B0CGXT113R) [**Filter King 19.5x19.5x1 Air Filter (MERV 11) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$53.04**810 rev2w ago](https://www.amazon.com/dp/B07J6T17V6) [**Filter King 19.5x19.5x1 Air Filter (MERV 8) (3-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$34.04**1,771 rev3y ago](https://www.amazon.com/dp/B0BV4XQCL7) [**Aerostar 19.5x19.5x1 MERV 8 - 4 Count - High Efficiency Pleated HVAC Furnace & Air Conditioner Filters - Removes Dust Lint Mold & Allergy-Causing Pollen**Aerostar**$38.76**378 rev7y ago](https://www.amazon.com/dp/B07TWNSQ8H) [**Filter King 19.5x19.5x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$50.35**39 rev7y ago](https://www.amazon.com/dp/B07HFG7G2F)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Filter King 19.5x19.5x1 Air Filter (MERV 8) (3-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$34.04**4.7★**▲ 52%**](https://www.amazon.com/dp/B0BV4XQCL7) [**Filter King 19.5x19.5x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$50.35**4.6★**▲ 15%**](https://www.amazon.com/dp/B07HFG7G2F) [**Filter King 19.5x19.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$38.91**4.7★**— 3%**](https://www.amazon.com/dp/B07FQYMDN4) [**Filter King 19.5x19.5x1 Air Filter (MERV 11) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$53.04**4.6★**— 3%**](https://www.amazon.com/dp/B07J6T17V6) [**Filter King 19.5x19.5x1 Air Filter (MERV 13) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 19.5 x .75)**Filter King**$52.17**4.5★**▼ 37%**](https://www.amazon.com/dp/B0CGXT113R)
**~~View all trending →~~**
## **What buyers say about 19.5x19.5x1 air filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**56%
*“Fits perfectly”*
**Quality-Overall**31%
*“good quality”*
**Assembly/Installation**8%
*“is easy to install”*
**Value For Money**6%
*“good price”*
### **What buyers complain about **
**Size-Overall**100%
*“was a little big”*
### **Top return reasons **
**Size-Overall**81%
**Filtration**5%
**Compatibility-Overall**5%
**Water Resistance**2%
**Value For Money**2%
**Assembly/Installation**2%
**Measurement/Reading Accuracy**2%
**Functionality-Overall**1%
## **Common questions**
- **Is 19.5x19.5x1 air filter profitable to sell on Amazon United States?**
- The niche generates $80K/yr across 6 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +45.9%. Flapen's verdict: Skip it (48/100).
- **How competitive is the 19.5x19.5x1 air filter niche?**
- 2 brands and 6 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 19.5x19.5x1 air filter?**
- Top complaints mined from reviews: Size-Overall. The return rate is 0.5%.
- **What does it cost to enter the 19.5x19.5x1 air filter niche?**
- Listings span $34.04–$53.04; the average listing price is $44.55 (sweet spot $15–$100). The average incumbent carries 800 reviews — the moat a new listing must climb.
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