---
title: "16x20x5 Air Filter — $90K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/16x20x5-air-filter"
last_updated: "2026-08-08T06:57:50.881Z"
locale: en
meta:
description: "Niche score 47/100 · $90K/yr market · 13K searches/yr · $60.69 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $90K/yr market · 13K searches/yr · $60.69 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "16x20x5 Air Filter — $90K/yr Amazon US Niche (2026) - Flapen"
---
# **16x20x5 air filter**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 23Growth 53Conversion 94Competition 20Returns 96Price range 94Avg price 89Brand share 0Review moat 41Quality gap 25
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****11.6%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$35.29–$100.69**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$60.69**
avg listing price — sweet spot $15–$100
**Growth**
**Good****+24.8%**
90-day search growth — must beat 0% to launch
**Review moat**
**Okay****2,445.79**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$90K**
$90K/yr · 13K searches
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**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, 16x20x5 air filter is a $90K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul. Verdict: Skip it — 47/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **16x20x5 air filter market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$91K–$121K**
- units × avg price
- **Conversion rate**
- **11.6%**
- **Avg BSR**
- **#623**
- **Page quality**
- **0%**
- **Prime**
- **57%**
- **Sponsored**
- **79%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **60 months**
- **Avg seller age**
- **190 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**7**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**0%**
- AIRx Filters48% - Filterbuy38% - Nordic Pure11% - Merv King3% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +24.8% search growth over the last 90 days.
300200Spike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/16x20x5-air-filter/trend)
## **Top 16x20x5 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%10%$9K20%$18K30%$27K40%$36K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Filterbuy 16x20x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack) Pleated HVAC AC Furnace Filters for Honeywell FC100A1003 Lennox X0592 and More (Actual Size: 15.75 x 19.75 x 4.38)**Filterbuy**$59.01**4.6★19,747 rev](https://www.amazon.com/dp/B00NVF4Q3S) [2**AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with ReservePro 4350 Furnace Filter 2 Pack**AIRx Filters**$54.27**4.7★109 rev](https://www.amazon.com/dp/B0CF7RWY2W) [3**AIRx Filters 16x20x5 MERV 11 HVAC AC Furnace Air Filter Replacement for Lennox X0582 Allergy 2-Pack Made in the USA**AIRx Filters**$58.83**4.6★142 rev](https://www.amazon.com/dp/B07TB9ZF1S) [4**Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack**Nordic Pure**$35.29**4.8★5 rev](https://www.amazon.com/dp/B0G3BDJCJ2) [5**AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with Honeywell FC100A1003 Furnace Filter 2 Pack**AIRx Filters**$56.91**4.5★136 rev](https://www.amazon.com/dp/B0CF7Q6GS8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack**Nordic Pure**$35.29**5 rev8mo ago](https://www.amazon.com/dp/B0G3BDJCJ2) [**Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 2 Pack**Nordic Pure**$58.68**2 rev8mo ago](https://www.amazon.com/dp/B0G3BF12F9) [**MervKing 16x20x5 Air Filter Actual Size: 15.88 x 19.88 x 4.38 MERV 8 MPR 600-700 | MADE IN USA | 2-Pack | Pleated HVAC AC Furnace Replacement**Merv King**$47.25**78 rev1y ago](https://www.amazon.com/dp/B0DH3YHRDF) [**AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with ReservePro 4350 Furnace Filter 2 Pack**AIRx Filters**$54.27**109 rev2y ago](https://www.amazon.com/dp/B0CF7RWY2W) [**AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with Honeywell FC100A1003 Furnace Filter 2 Pack**AIRx Filters**$56.91**136 rev2y ago](https://www.amazon.com/dp/B0CF7Q6GS8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 2 Pack**Nordic Pure**$58.68**4.5★**▲ 143%**](https://www.amazon.com/dp/B0G3BF12F9) [**AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with Honeywell FC100A1003 Furnace Filter 2 Pack**AIRx Filters**$56.91**4.5★**▲ 121%**](https://www.amazon.com/dp/B0CF7Q6GS8) [**Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack**Nordic Pure**$35.29**4.8★**▲ 103%**](https://www.amazon.com/dp/B0G3BDJCJ2) [**MervKing 16x20x5 Air Filter Actual Size: 15.88 x 19.88 x 4.38 MERV 8 MPR 600-700 | MADE IN USA | 2-Pack | Pleated HVAC AC Furnace Replacement**Merv King**$47.25**4.7★**▲ 70%**](https://www.amazon.com/dp/B0DH3YHRDF) [**AIRx Filters Dust 16x20x5 Media Air Filter MERV 8 Replacement for Honeywell FC100A1003 209894 FC35A1035 2-Pack**AIRx Filters**$56.32**4.3★**▲ 19%**](https://www.amazon.com/dp/B07B3WTHQ5)
**~~View all trending →~~**
## **What buyers say about 16x20x5 air filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**32%
*“Fit just right”*
**Filtration**28%
*“Easy to use filters”*
**Quality-Overall**18%
*“Made well and works well for me w/alot of pets”*
**Value For Money**13%
*“good product for the price”*
**Advertised Vs Actual Product**3%
*“Just what I was looking for”*
**Ease Of Use**2%
*“Easy to use filters”*
**Assembly/Installation**1%
*“They were easy to install”*
**Strength**1%
*“They are sturdy”*
### **What buyers complain about **
**Filtration**33%
*“it's actually 4-3/8 so the other nominal 4 filters I bought were too thin”*
**Size-Overall**17%
*“The size seems a little to tall when first out of the box -”*
**Allergies**7%
*“I noticed within a few days that my allergies have all”*
### **Top return reasons **
**Size-Overall**78%
**Filtration**14%
**Compatibility-Overall**4%
**Advertised Vs Actual Product**2%
**Value For Money**2%
**Maintenance And Repair**1%
**Thickness**1%
**Defective Material/Parts**1%
**Quality-Overall**1%
**Ease Of Use**0%
## **Common questions**
- **Is 16x20x5 air filter profitable to sell on Amazon United States?**
- The niche generates $90K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +24.8%. Flapen's verdict: Skip it (47/100).
- **How competitive is the 16x20x5 air filter niche?**
- 4 brands and 7 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 16x20x5 air filter?**
- Top complaints mined from reviews: Filtration, Size-Overall, Allergies. The return rate is 0.8%.
- **When does demand for 16x20x5 air filter peak?**
- Demand peaks in Jul; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the 16x20x5 air filter niche?**
- Listings span $35.29–$100.69; the average listing price is $60.69 (sweet spot $15–$100). The average incumbent carries 2,446 reviews — the moat a new listing must climb.
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