---
title: "18x30x1 Air Filter — $963K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/18x30x1-air-filter"
last_updated: "2026-08-07T21:48:31.107Z"
locale: en
meta:
description: "Niche score 60/100 · $963K/yr market · 202K searches/yr · $49.50 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 60/100 · $963K/yr market · 202K searches/yr · $49.50 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "18x30x1 Air Filter — $963K/yr Amazon US Niche (2026) - Flapen"
---
# **18x30x1 air filter**
**Launch it**
A $963K/yr market growing +34.3% this quarter with returns at 0.6% — clears our launch bar.
Market size 77Growth 59Conversion 86Competition 46Returns 97Price range 95Avg price 93Brand share 18Review moat 20Quality gap 23
**Returns**
**Incredible****0.6%**
return rate — above 5% kills the launch gate
**Price range**
**Incredible****$26.55–$80.11**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$49.50**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****9.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Great****$963K**
$963K/yr · 202K searches
**Growth**
**Good****+34.3%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****57%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****12,549.33**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 18x30x1 air filter is a $963K/yr Amazon United States market (202K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jun–Jul. Verdict: Launch it — 60/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **18x30x1 air filter market data**
- **Units sold / yr**
- **20K–25K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$990K–$1.2M**
- units × avg price
- **Conversion rate**
- **9.7%**
- **Avg BSR**
- **#136**
- **Page quality**
- **0%**
- **Prime**
- **62%**
- **Sponsored**
- **76%**
- **Out of stock**
- **2.5%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **199 days**
## **Competition & brand share**
The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **▲rising
**Sellers**
**19**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**57%**
Top 20: 99%
**Open market**
**5%**
- Filterbuy36% - Filtrete28% - Filter King16% - Simply8% - Aerostar6% - protectplusair2% - Open — no brand owns it (4 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — +34.3% search growth over the last 90 days.
6K4KSpike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/18x30x1-air-filter/trend)
## **Top 18x30x1 air filter search terms**
- **18x30x1 air filter**99K/yr+36.9%9.5% conv. - **air filter 18x30x1**25K/yr+36.4%8.1% conv. - **18x30x1 air filter 6 pack**14K/yr+20.2%12.9% conv. - **18 x 30 x 1 air filters for home**14K/yr+17.9%10.4% conv. - **ac filter 18x30x1**9K/yr+63.2%9.7% conv. - **18x30x1**6K/yr+38.8%9.7% conv. - **furnace filters 18x30x1**6K/yr+43.8%3.6% conv. - **18x30x1 furnace filter**6K/yr+30.3%2.1% conv. - **18x30 air filter**6K/yr+23.0%7.6% conv. - **air filters 18x30x1**5K/yr+23.2%11.8% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/18x30x1-air-filter/search-terms)
## **Top 18x30x1 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%4%$39K8%$77K12%$116K16%$154K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 21 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Filter King 18x30x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 29.5 x .75)**Filter King**$49.93**4.7★2,030 rev](https://www.amazon.com/dp/B07HFGJ9R5) [2**Filterbuy 18x30x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 17.75 x 29.75 x 0.75)**Filterbuy**$44.85**4.7★2,721 rev](https://www.amazon.com/dp/B00CJZ8F74) [3**Filterbuy 18x30x1 Air Filter MERV 8 Essential Dust & Allergy Defense (6-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 17.75 x 29.75 x 0.75)**Filterbuy**$54.30**4.7★51,098 rev](https://www.amazon.com/dp/B00CK01ZZW) [4**Filtrete 18x30x1 AC Furnace Air Filter MPR 700 MERV 8 Tough on Pollen Easy on Airflow 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 4-Pack (Actual Size 17.81 x 29.81 x 0.81 in)**Filtrete**$43.14**4.7★6,265 rev](https://www.amazon.com/dp/B0DLQ9J2FW) [5**Simply 18x30x1 Air Filter Merv 8 6 Pack For Home AC Furnace & HVAC (Actual Size: 17.75x29.75x0.75) DUST Pet & Allergy Control**Simply**$49.77**4.7★53,363 rev](https://www.amazon.com/dp/B09RHL8X54)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Reair 18x30x1 Air filter Washable and Reusable Air Filter 18x30x1 for AC HVAC Furnace MERV 8 Air Filters Machine Washable & Dryer Friendly AC Furnace Air Filter**REAIR**$37.10**1,886 rev1y ago](https://www.amazon.com/dp/B0FHWGYGGC) [**Filtrete 18x30x1 AC Furnace Air Filter MPR 700 MERV 8 Tough on Pollen Easy on Airflow 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 2-Pack (Actual Size 17.81 x 29.81 x 0.81 in)**Filtrete**$26.55**740 rev1y ago](https://www.amazon.com/dp/B0F9LTRT2N) [**Nexiview 18x30x1 Furnace Filter-MERV8 Washable & Reusable Electrostatic Air Filter AC/HVAC Furnace Filter Permanent Air Filter Breathe Fresher Easy Install**Nexiview**$28.47**635 rev1y ago](https://www.amazon.com/dp/B0DS1VGQPY) [**Torjim 18x30x1 MERV8 Air Filter Washable & Reusable Electrostatic Filter AC/HVAC Furnace Filter Permanent Filter Breathe Fresher Easy Install**Torjim**$34.56**1,019 rev1y ago](https://www.amazon.com/dp/B0DN5FDCPY) [**Simply 18x30x1 Air Filter MERV 8 12 Pack For Home AC Furnace & HVAC (Actual Size: 17.75x29.75x0.75) DUST Pet & Allergy Control**Simply**$80.11**491 rev1y ago](https://www.amazon.com/dp/B0DKQ89RL9)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Simply 18x30x1 Air Filter MERV 8 12 Pack For Home AC Furnace & HVAC (Actual Size: 17.75x29.75x0.75) DUST Pet & Allergy Control**Simply**$80.11**4.7★**▲ 131%**](https://www.amazon.com/dp/B0DKQ89RL9) [**Filter King 18x30x1 Air Filter (MERV 8) (2-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 29.5 x .75)**Filter King**$37.87**4.8★**▲ 108%**](https://www.amazon.com/dp/B07T74Z44J) [**Filter King 18x30x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 29.5 x .75)**Filter King**$49.93**4.7★**▲ 82%**](https://www.amazon.com/dp/B07HFGJ9R5) [**Aerostar 18x30x1 MERV 8 Pleated Air Filter AC Furnace Air Filter 4 Pack (Actual Size: 17 1/2 x 19 1/2 x 3/4)**Aerostar**$38.81**4.7★**▲ 75%**](https://www.amazon.com/dp/B07N49NPZ5) [**Nexiview 18x30x1 Furnace Filter-MERV8 Washable & Reusable Electrostatic Air Filter AC/HVAC Furnace Filter Permanent Air Filter Breathe Fresher Easy Install**Nexiview**$28.47**4.4★**▲ 68%**](https://www.amazon.com/dp/B0DS1VGQPY)
**~~View all trending →~~**
## **What buyers say about 18x30x1 air filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**25%
*“This filter works great”*
**Quality-Overall**18%
*“Good quality, easy install, excellent finish and controls”*
**Value For Money**15%
*“Save money”*
**Size-Overall**11%
*“Fit nicely”*
**Smell**5%
*“the air smells clean in my house”*
**Ease Of Use**5%
*“It is so convenient”*
**Ease Of Cleaning**5%
*“Cleaner air”*
**Assembly/Installation**4%
*“Easy to install”*
**Advertised Vs Actual Product**2%
*“Works as advertised and no problems”*
**Efficiency**1%
*“Works well”*
### **What buyers complain about **
**Size-Overall**27%
*“too big to fit”*
**Filtration**26%
*“These are terrible filters”*
**Quality-Overall**10%
*“These have got to be the lowest quality filters on the market”*
**Functionality-Overall**4%
*“It did not work”*
**Strength**4%
*“They are not sturdy or durable”*
**Material Quality**4%
*“Not great quality - very cheap materials”*
**Assembly/Installation**4%
*“a little difficult to install”*
**Adhesion/Stickiness**3%
*“They were damaged in the box and glued together”*
### **Top return reasons **
**Size-Overall**71%
**Filtration**13%
**Compatibility-Overall**5%
**Value For Money**3%
**Advertised Vs Actual Product**2%
**Thin**1%
**Frame Quality**1%
**Assembly/Installation**1%
**Material Quality**1%
**Defective Material/Parts**1%
## **Common questions**
- **Is 18x30x1 air filter profitable to sell on Amazon United States?**
- The niche generates $963K/yr across 21 tracked products. 90-day search growth is +34.3%. Flapen's verdict: Launch it (60/100).
- **How competitive is the 18x30x1 air filter niche?**
- 10 brands and 19 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in 18x30x1 air filter?**
- Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 0.6%.
- **When does demand for 18x30x1 air filter peak?**
- Demand peaks in Jun–Jul; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the 18x30x1 air filter niche?**
- Listings span $26.55–$80.11; the average listing price is $49.50 (sweet spot $15–$100). The average incumbent carries 12,549 reviews — the moat a new listing must climb.
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