---
title: "16x24x4 Furnace Filter — $127K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/16x24x4-furnace-filter"
last_updated: "2026-08-08T09:42:11.085Z"
locale: en
meta:
description: "Niche score 46/100 · $127K/yr market · 21K searches/yr · $58.72 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $127K/yr market · 21K searches/yr · $58.72 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "16x24x4 Furnace Filter — $127K/yr Amazon US Niche (2026) - Flapen"
---
# **16x24x4 furnace filter**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 29Growth 53Conversion 89Competition 19Returns 93Price range 95Avg price 90Brand share 0Review moat 19Quality gap 27
**Price range**
**Incredible****$43.23–$86.30**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$58.72**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****10.5%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+24.1%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$127K**
$127K/yr · 21K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****77%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****15,321.62**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****100%**
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, 16x24x4 furnace filter is a $127K/yr Amazon United States market (21K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 46/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **16x24x4 furnace filter market data**
- **Units sold / yr**
- **2K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$117K–$147K**
- units × avg price
- **Conversion rate**
- **10.5%**
- **Avg BSR**
- **#90**
- **Page quality**
- **0%**
- **Prime**
- **38%**
- **Sponsored**
- **69%**
- **Out of stock**
- **5.3%**
- **Avg brand age**
- **75 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**29**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**77%**
Top 20: 100%
**Open market**
**0%**
- Filtrete42% - Filterbuy38% - Filter King15% - Nordic Pure4% - Glasfloss1%
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — +24.1% search growth over the last 90 days.
600400Spike '24Black Friday '24Holiday '24Spike '25Prime Day '25Spike '26Prime Day '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/16x24x4-furnace-filter/trend)
## **Top 16x24x4 furnace 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%10%$13K20%$25K30%$38K40%$51K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Filterbuy 16x24x4 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 15.38 x 23.38 x 3.63)**Filterbuy**$49.84**4.6★68,921 rev](https://www.amazon.com/dp/B00CK04V7Q) [2**Filtrete 16x25x4 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 2-Pack Fits Lennox & Honeywell AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)**Filtrete**$43.58**4.6★1,839 rev](https://www.amazon.com/dp/B09RQCMR5V) [3**Filtrete 16x25x4 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 4-Pack Fits Lennox & Honeywell AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 15.88 x 24.56 x 4.31 in)**Filtrete**$71.56**4.6★4,889 rev](https://www.amazon.com/dp/B01N5GYRTF) [4**Filter King 16x24x4 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 15.5 x 23.5 x 3.75)**Filter King**$70.65**4.6★3,373 rev](https://www.amazon.com/dp/B0BZ6FYSVV) [5**Filtrete 16x25x4 Air Filter MERV 12 MPR 1550 Certified Asthma & Allergy Friendly 2-Pack Fits Lennox & Honeywell AC Furnace HVAC Filters Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)**Filtrete**$51.55**4.6★5,199 rev](https://www.amazon.com/dp/B09RQBQ776)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Filter King 16x24x4 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 15.5 x 23.5 x 3.75)**Filter King**$70.65**3,373 rev3y ago](https://www.amazon.com/dp/B0BZ6FYSVV) [**Filter King 16x24x4 Air Filter (MERV 8) (5-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 15.5 x 23.5 x 3.75)**Filter King**$82.57**961 rev3y ago](https://www.amazon.com/dp/B0BY3P6LKP) [**Filtrete 16x25x4 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 2-Pack Fits Lennox & Honeywell AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)**Filtrete**$43.58**1,839 rev4y ago](https://www.amazon.com/dp/B09RQCMR5V) [**Filtrete 16x25x4 Air Filter MERV 12 MPR 1550 Certified Asthma & Allergy Friendly 2-Pack Fits Lennox & Honeywell AC Furnace HVAC Filters Pleated Electrostatic (Actual Size 15.88x24.56x4.31 in)**Filtrete**$51.55**5,199 rev4y ago](https://www.amazon.com/dp/B09RQBQ776) [**Glasfloss ZL 16x24x4 MERV 10 Pleated Air Filters for AC Furnace. 3-Pack**Glasfloss**$45.47**2 rev6y ago](https://www.amazon.com/dp/B082DM7LVM)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Filter King 16x24x4 Air Filter (MERV 8) (5-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 15.5 x 23.5 x 3.75)**Filter King**$82.57**4.7★**▲ 120%**](https://www.amazon.com/dp/B0BY3P6LKP) [**Filterbuy 16x24x4 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 15.38 x 23.38 x 3.63)**Filterbuy**$63.86**4.5★**▲ 38%**](https://www.amazon.com/dp/B00CK03DIY) [**Filtrete 16x25x4 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 4-Pack Fits Lennox & Honeywell AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 15.88 x 24.56 x 4.31 in)**Filtrete**$71.56**4.6★**▲ 33%**](https://www.amazon.com/dp/B01N5GYRTF) [**Glasfloss ZL 16x24x4 MERV 10 Pleated Air Filters for AC Furnace. 3-Pack**Glasfloss**$45.47**5.0★**▲ 20%**](https://www.amazon.com/dp/B082DM7LVM) [**Filterbuy 16x24x4 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 15.38 x 23.38 x 3.63)**Filterbuy**$49.84**4.6★**▲ 16%**](https://www.amazon.com/dp/B00CK04V7Q)
**~~View all trending →~~**
## **What buyers say about 16x24x4 furnace filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**24%
*“Good fit”*
**Filtration**22%
*“Quality filter”*
**Quality-Overall**16%
*“High performance”*
**Value For Money**16%
*“Good price”*
**Advertised Vs Actual Product**9%
*“Worked as advertised”*
**Assembly/Installation**2%
*“Easy install”*
**Ease Of Use**2%
*“Very nice convenient”*
**Durability**1%
*“Last very well”*
**Efficiency**1%
*“they work great in my HVAC”*
**Allergies**1%
*“Not only do the filters stand up to our household standards for allergic relief”*
### **What buyers complain about **
**Size-Overall**58%
*“To small”*
**Filtration**14%
*“Filter didn't fit”*
**Advertised Vs Actual Product**9%
*“Incorrect size advertised”*
**Quality-Overall**4%
*“I guess thier quality control is off”*
**Compatibility-Overall**2%
*“Do not fit Honeywell”*
**Ease Of Use**2%
*“then getting it out took quite a bit of effort”*
**Value For Money**2%
*“These are on a pricey side”*
**Thin**1%
*“Noticeably thinner than 4inch”*
**Strength**1%
*“Also a bit flimsy”*
**Measurement/Reading Accuracy**1%
*“Measurements are wrong”*
### **Top return reasons **
**Size-Overall**70%
**Filtration**13%
**Compatibility-Overall**8%
**Value For Money**3%
**Advertised Vs Actual Product**2%
**Thickness**1%
**Defective Material/Parts**1%
**Functionality-Overall**0%
**Product Condition**0%
**Maintenance And Repair**0%
## **Common questions**
- **Is 16x24x4 furnace filter profitable to sell on Amazon United States?**
- The niche generates $127K/yr across 13 tracked products. 90-day search growth is +24.1%. Flapen's verdict: Skip it (46/100).
- **How competitive is the 16x24x4 furnace filter niche?**
- 5 brands and 29 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 16x24x4 furnace filter?**
- Top complaints mined from reviews: Size-Overall, Filtration, Advertised Vs Actual Product. The return rate is 1.1%.
- **When does demand for 16x24x4 furnace filter peak?**
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- **What does it cost to enter the 16x24x4 furnace filter niche?**
- Listings span $43.23–$86.30; the average listing price is $58.72 (sweet spot $15–$100). The average incumbent carries 15,322 reviews — the moat a new listing must climb.
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