---
title: "20x25x1 Air Filter Merv 13 — $222K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/20x25x1-air-filter-merv-13"
last_updated: "2026-08-07T14:24:24.746Z"
locale: en
meta:
  description: "Niche score 52/100 · $222K/yr market · 41K searches/yr. Brand-locked demand (top 5 brands take 91% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 52/100 · $222K/yr market · 41K searches/yr. Brand-locked demand (top 5 brands take 91% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "20x25x1 Air Filter Merv 13 — $222K/yr Amazon US Niche (2026) - Flapen"
---

# **20x25x1 air filter merv 13**

**Worth a look**

Shows low returns (0.9%), but brand-locked demand (top 5 brands take 91% of clicks) keeps it on the watch list.

Market size 42Growth 42Conversion 88Competition 23Returns 96Price range 95Avg price 92Brand share 22Review moat 25Quality gap 47

**Returns**

**Incredible****0.9%**

return rate — above 5% kills the launch gate

**Price range**

**Incredible****$34.97–$88.98**

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

**Avg price**

**Great****$53.49**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****10.2%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Market size**

**Okay****$222K**

$222K/yr · 41K searches

**Growth**

**Okay****+13.9%**

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

**Review moat**

**Bad****4,090.07**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Bad****73%**

top-5 click share — a locked-up shelf

**Brand share**

**Bad****91%**

top-5 brand share — brand-locked demand

**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

According to Flapen's Amazon United States niche tracking, 20x25x1 air filter merv 13 is a $222K/yr Amazon United States market (41K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jul. Verdict: Worth a look — 52/100.

Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **20x25x1 air filter merv 13 market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**4K–5K**</dd><dd>avg 250–500/product</dd>

<dt>**Revenue / yr**</dt><dd>**$214K–$267K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**10.2%**</dd>

<dt>**Avg BSR**</dt><dd>**#200**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**80%**</dd>

<dt>**Sponsored**</dt><dd>**87%**</dd>

<dt>**Out of stock**</dt><dd>**11.8%**</dd>

<dt>**Avg brand age**</dt><dd>**51 months**</dd>

<dt>**Avg seller age**</dt><dd>**171 days**</dd>

</dl>

## **Competition & brand share**

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**10 **▲rising

**Sellers**

**25**

**Top-5 brand share**

**91%**

Top 20: 100%

**Top-5 click share**

**73%**

Top 20: 100%

**Open market**

**6%**

- BNX29% - Filtrete26% - Filterbuy15% - Aerostar14% - Simply7% - Clorox Air Filters2% - Open — no brand owns it (4 brands, 6%)

## **Demand & seasonality**

Weekly Amazon search volume, last 103 weeks — +13.9% search growth over the last 90 days.

3K2KSpike '25Prime Day '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 2.1×

[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/20x25x1-air-filter-merv-13/trend)

## **Top 20x25x1 air filter merv 13 search terms**

- **20x25x1 air filter merv 13**15K/yr+23.4%9.7% conv. - **merv 13 20x25x1**11K/yr+106.5%9.7% conv. - **merv 13 20x25x1 air filters**5K/yr-41.3%8.3% conv. - **20x25x1 merv 13**5K/yr-1.7%10.1% conv. - **air filter 20x25x1 merv 13**3K/yr+35.3%9.8% conv. - **merv 13 filter 20x25x1**2K/yr-1.9%5.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/20x25x1-air-filter-merv-13/search-terms)

## **Top 20x25x1 air filter merv 13 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%10%$22K20%$44K30%$67K40%$89K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Filtrete 20x25x1 Air Filter MERV 13 MPR 1900 Allergens Bacteria Viruses & Air Pollutants 3-Month AC/Furnace Filters Cleaner Air Reliable Airflow 2 HVAC Filters(Act Size 19.62x24.62x0.78 in)](https://m.media-amazon.com/images/I/41RiP9AkonL.jpg)**Filtrete 20x25x1 Air Filter MERV 13 MPR 1900 Allergens Bacteria Viruses & Air Pollutants 3-Month AC/Furnace Filters Cleaner Air Reliable Airflow 2 HVAC Filters(Act Size 19.62x24.62x0.78 in)**Filtrete**$34.97**4.8★17,142 rev](https://www.amazon.com/dp/B00TUDHC0O) [2![BNX TruFilter 20x25x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies Pollen Mold Bacteria Smoke Allergen MPR 1900 FPR 10](https://m.media-amazon.com/images/I/518bGeIodhL.jpg)**BNX TruFilter 20x25x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies Pollen Mold Bacteria Smoke Allergen MPR 1900 FPR 10**BNX**$60.96**4.7★7,885 rev](https://www.amazon.com/dp/B09XGDZQNG) [3![Aerostar 20x25x1 MERV 13 Air Filter 6 Count ACTUAL SIZE (19.75 x 24.75 x 0.75) HVAC Air Conditioning & Furnace Filter for Allergies Dust Pet Dander & Smoke (MPR 1500 / FPR 10) Made in USA](https://m.media-amazon.com/images/I/517RKvrzBwL.jpg)**Aerostar 20x25x1 MERV 13 Air Filter 6 Count ACTUAL SIZE (19.75 x 24.75 x 0.75) HVAC Air Conditioning & Furnace Filter for Allergies Dust Pet Dander & Smoke (MPR 1500 / FPR 10) Made in USA**Aerostar**$48.93**4.5★3,080 rev](https://www.amazon.com/dp/B01CR9JLDI) [4![Filterbuy 20x25x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (6-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 19.50 x 24.50 x 0.75)](https://m.media-amazon.com/images/I/51RIJ1nA41L.jpg)**Filterbuy 20x25x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (6-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 19.50 x 24.50 x 0.75)**Filterbuy**$62.23**4.6★191 rev](https://www.amazon.com/dp/B00CK011VK) [5![Simply 20x25x1 Air Filter Merv 13 6 Pack For Home AC Furnace & HVAC (Actual Size: 19.75x24.75x0.75) DUST Pet & Allergy Control](https://m.media-amazon.com/images/I/51rTv5iVHSL.jpg)**Simply 20x25x1 Air Filter Merv 13 6 Pack For Home AC Furnace & HVAC (Actual Size: 19.75x24.75x0.75) DUST Pet & Allergy Control**Simply**$49.40**4.2★3,094 rev](https://www.amazon.com/dp/B0BVC2NKXN)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Pleatedfold 20x25x1 Air Filter AC Furnace MERV 13 Comparable with MPR 1900 FPR 10 HVAC Air Condition cabin Vent Fan Electrostatic Pleated Actual Size 19.49 x 24.49 x 0.75 6 Packs](https://m.media-amazon.com/images/I/51tmQ2GWloL.jpg)**Pleatedfold 20x25x1 Air Filter AC Furnace MERV 13 Comparable with MPR 1900 FPR 10 HVAC Air Condition cabin Vent Fan Electrostatic Pleated Actual Size 19.49 x 24.49 x 0.75 6 Packs**Pleatedfold**$35.55**8 rev11mo ago](https://www.amazon.com/dp/B0FN7X4PNZ) [![Clorox 20x25x1 Air Filter MERV 13 Pleated HVAC AC Furnace Air Filters for Allergies Pet Dander Smoke and more MPR 1500 & FPR 10 Pack of 4](https://m.media-amazon.com/images/I/41vZMCBgdXL.jpg)**Clorox 20x25x1 Air Filter MERV 13 Pleated HVAC AC Furnace Air Filters for Allergies Pet Dander Smoke and more MPR 1500 & FPR 10 Pack of 4**Clorox Air Filters**$53.17**18 rev1y ago](https://www.amazon.com/dp/B0FDLCGSD8) [![PuroAir MegaFilter - 20x25x1 Air Filter MERV 13 Activated CarbonTech Defense - Heavy Duty 3 Layer Furnace Filters Allergens Pollen Dust Pet Dander Smoke Odors - HVAC Air Filter 20x25x1 (2-Pack)](https://m.media-amazon.com/images/I/51yWOh7vgcL.jpg)**PuroAir MegaFilter - 20x25x1 Air Filter MERV 13 Activated CarbonTech Defense - Heavy Duty 3 Layer Furnace Filters Allergens Pollen Dust Pet Dander Smoke Odors - HVAC Air Filter 20x25x1 (2-Pack)**PuroAir**$54.93**709 rev1y ago](https://www.amazon.com/dp/B0F7WB8VXD) [![Filter King 20x25x1 Air Filter (MERV 13) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 24.5 x .75)](https://m.media-amazon.com/images/I/01RmK+J4pJL.gif)**Filter King 20x25x1 Air Filter (MERV 13) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 19.5 x 24.5 x .75)**Filter King**$54.61**159 rev2y ago](https://www.amazon.com/dp/B0CZM6CFK9) [![Chenzhit (4 Pack) 20x25x1 Furnace Air Filters MPR 1900 & FPR 10 MERV 13 Pleated Air Filter (Actual Size: 19 3/4x 24 3/4 x 3/4)](https://m.media-amazon.com/images/I/511UWj1dq1L.jpg)**Chenzhit (4 Pack) 20x25x1 Furnace Air Filters MPR 1900 & FPR 10 MERV 13 Pleated Air Filter (Actual Size: 19 3/4x 24 3/4 x 3/4)**Chenzhit**$39.79**647 rev2y ago](https://www.amazon.com/dp/B0CRRXVNVC)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Aerostar 20x25x1 MERV 13 - 4 Count - Pleated HVAC Furnace & Air Conditioner Filters - Removes Bacteria Dust Cold & Flu Germs Lint Mold Pet Dander Allergy-Causing Pollen Smog Smoke & Viruses](https://m.media-amazon.com/images/I/41LICJ-Z7mL.jpg)**Aerostar 20x25x1 MERV 13 - 4 Count - Pleated HVAC Furnace & Air Conditioner Filters - Removes Bacteria Dust Cold & Flu Germs Lint Mold Pet Dander Allergy-Causing Pollen Smog Smoke & Viruses**Aerostar**$49.73**4.5★**▲ 131%**](https://www.amazon.com/dp/B07YYK964K) [![Filterbuy 20x25x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 19.50 x 24.50 x 0.75)](https://m.media-amazon.com/images/I/51C0LgEyACL.jpg)**Filterbuy 20x25x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 19.50 x 24.50 x 0.75)**Filterbuy**$56.72**4.6★**▲ 75%**](https://www.amazon.com/dp/B00CJZ7RT6) [![Clorox 20x25x1 Air Filter MERV 13 Pleated HVAC AC Furnace Air Filters for Allergies Pet Dander Smoke and more MPR 1500 & FPR 10 Pack of 4](https://m.media-amazon.com/images/I/41vZMCBgdXL.jpg)**Clorox 20x25x1 Air Filter MERV 13 Pleated HVAC AC Furnace Air Filters for Allergies Pet Dander Smoke and more MPR 1500 & FPR 10 Pack of 4**Clorox Air Filters**$53.17**4.4★**▲ 56%**](https://www.amazon.com/dp/B0FDLCGSD8) [![Filtrete 20x25x1 Air Filter MERV 13 MPR 1900 Allergens Bacteria Viruses & Air Pollutants 3-Month AC/Furnace Filters Cleaner Air Reliable Airflow 4 HVAC Filters(Act Size 19.62x24.62x0.78 in)](https://m.media-amazon.com/images/I/41T07R7SY3L.jpg)**Filtrete 20x25x1 Air Filter MERV 13 MPR 1900 Allergens Bacteria Viruses & Air Pollutants 3-Month AC/Furnace Filters Cleaner Air Reliable Airflow 4 HVAC Filters(Act Size 19.62x24.62x0.78 in)**Filtrete**$62.05**4.8★**▲ 55%**](https://www.amazon.com/dp/B005GZ8JKC) [![Chenzhit (4 Pack) 20x25x1 Furnace Air Filters MPR 1900 & FPR 10 MERV 13 Pleated Air Filter (Actual Size: 19 3/4x 24 3/4 x 3/4)](https://m.media-amazon.com/images/I/511UWj1dq1L.jpg)**Chenzhit (4 Pack) 20x25x1 Furnace Air Filters MPR 1900 & FPR 10 MERV 13 Pleated Air Filter (Actual Size: 19 3/4x 24 3/4 x 3/4)**Chenzhit**$39.79**4.7★**▲ 28%**](https://www.amazon.com/dp/B0CRRXVNVC)

**~~View all trending →~~**

## **What buyers say about 20x25x1 air filter merv 13**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Filtration**30%

*“Excellent filters”*

**Quality-Overall**16%

*“The quality is way better than my usual air filter”*

**Value For Money**16%

*“Great deal”*

**Size-Overall**12%

*“Size is accurate”*

**Efficiency**5%

*“Works great”*

**Allergies**4%

*“Great for those with alllergies”*

**Advertised Vs Actual Product**3%

*“Filters are as advertised”*

**Assembly/Installation**2%

*“are easy to install”*

**Strength**2%

*“What I really like is how sturdy”*

**Ease Of Cleaning**2%

*“These filters do a good job at reducing dust and allergens”*

### **What buyers complain about **

**Filtration**21%

*“Very disappointed with this filter”*

**Quality-Overall**16%

*“a very cheap product”*

**Strength**16%

*“Not sturdy at all”*

**Value For Money**7%

*“Overpriced”*

**Noise Level**5%

*“allowing the air to go around the filter causing an annoying whistling noise”*

**Durability**5%

*“Garbage, they come undone and break with in 3 weeks of use, luckily I cough it before pieces got sucked in into the unit, each and single one of the filters out of the pack that I bought came undone”*

**Assembly/Installation**4%

*“I didn't read that they were needed to be assembled”*

**Advertised Vs Actual Product**3%

*“its deceiving”*

**Size-Overall**3%

*“These filters do not fit correctly”*

**Allergies**3%

*“My 9 week old Granddaughter has allergies”*

### **Top return reasons **

**Size-Overall**60%

**Filtration**19%

**Compatibility-Overall**5%

**Value For Money**5%

**Advertised Vs Actual Product**2%

**Assembly/Installation**1%

**Defective Material/Parts**1%

**Certifications**1%

**Quality-Overall**1%

**Product Condition**1%

## **Common questions**

<dl>

<dt>**Is 20x25x1 air filter merv 13 profitable to sell on Amazon United States?**</dt><dd>The niche generates $222K/yr across 15 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +13.9%. Flapen's verdict: Worth a look (52/100).</dd>

<dt>**How competitive is the 20x25x1 air filter merv 13 niche?**</dt><dd>10 brands and 25 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 91% of demand.</dd>

<dt>**What do buyers complain about in 20x25x1 air filter merv 13?**</dt><dd>Top complaints mined from reviews: Filtration, Quality-Overall, Strength. The return rate is 0.9%.</dd>

<dt>**When does demand for 20x25x1 air filter merv 13 peak?**</dt><dd>Demand peaks in Jul; the busiest month runs 2.1× the quietest.</dd>

<dt>**What does it cost to enter the 20x25x1 air filter merv 13 niche?**</dt><dd>Listings span $34.97–$88.98; the average listing price is $53.49 (sweet spot $15–$100). The average incumbent carries 4,090 reviews — the moat a new listing must climb.</dd>

</dl>

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