---
title: "23.5 X 23.5 X1 Air Conditioner Filter — $176K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/23-5-x-23-5-x1-air-conditioner-filter"
last_updated: "2026-08-07T20:20:11.679Z"
locale: en
meta:
description: "Niche score 50/100 · $176K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $176K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "23.5 X 23.5 X1 Air Conditioner Filter — $176K/yr Amazon US Niche (2026) - Flapen"
---
# **23.5 x 23.5 x1 air conditioner filter**
**Worth a look**
Shows low returns (0.3%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 36Growth 73Conversion 82Competition 22Returns 98Price range 95Avg price 93Brand share 0Review moat 19Quality gap 25
**Returns**
**Incredible****0.3%**
return rate — above 5% kills the launch gate
**Price range**
**Incredible****$30.70–$87.86**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$50.16**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.8%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+56.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$176K**
$176K/yr · 40K searches
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****74%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****15,007.42**
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, 23.5 x 23.5 x1 air conditioner filter is a $176K/yr Amazon United States market (40K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 50/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **23.5 x 23.5 x1 air conditioner filter market data**
- **Units sold / yr**
- **3K–4K**
- avg 250–500/product
- **Revenue / yr**
- **$150K–$201K**
- units × avg price
- **Conversion rate**
- **8.8%**
- **Avg BSR**
- **#133**
- **Page quality**
- **0%**
- **Prime**
- **50%**
- **Sponsored**
- **67%**
- **Out of stock**
- **1.1%**
- **Avg brand age**
- **90 months**
- **Avg seller age**
- **195 days**
## **Competition & brand share**
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **—flat
**Sellers**
**11**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**74%**
Top 20: 100%
**Open market**
**0%**
- Filtrete40% - Filterbuy40% - Filter King16% - Simply4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +56.3% search growth over the last 90 days.
1K750Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/23-5-x-23-5-x1-air-conditioner-filter/trend)
## **Top 23.5 x 23.5 x1 air conditioner filter search terms**
- **23.5x23.5x1 air filter**18K/yr+47.4%9.6% conv. - **air filter 23.5x23.5x1**6K/yr+55.1%5.8% conv. - **ac filter 23.5 x 23.5 x 1**4K/yr+59.9%12.7% conv. - **furnace filters 23.5x23.5x1**4K/yr+75.7%0.6% conv. - **23.5x23.5x1 furnace filter**3K/yr+82.9%0.4% conv. - **23.5 x 23.5 x1 air conditioner filter**3K/yr+61.2%12.0% conv. - **air filter 23.5 x 23.5 x 1**2K/yr+26.0%11.6% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/23-5-x-23-5-x1-air-conditioner-filter/search-terms)
## **Top 23.5 x 23.5 x1 air conditioner 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%$18K20%$35K30%$53K40%$70K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Filtrete 23.5x23.5x1 AC Furnace Air Filter MERV 11 MPR 1000 Micro Allergen Defense 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 6 Pack (Actual Size Pack 23.188x23.188x0.81 in)**Filtrete**$70.75**4.8★11,774 rev](https://www.amazon.com/dp/B07FNZMY6L) [2**Filterbuy 23.5x23.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 23.38 x 23.38 x 0.75)**Filterbuy**$39.46**4.6★546 rev](https://www.amazon.com/dp/B00CJZ8ZG0) [3**Filter King 23.5x23.5x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 23.5 x 23.5 x .75)**Filter King**$50.23**3.5★7 rev](https://www.amazon.com/dp/B07HFDWCVL) [4**Filterbuy 23.5x23.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (6-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 23.38 x 23.38 x 0.75)**Filterbuy**$49.13**4.7★51,098 rev](https://www.amazon.com/dp/B00CK02F5G) [5**Filtrete 23.5x23.5x1 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 23.19 x 23.19 x 0.81 in)**Filtrete**$44.77**4.7★6,265 rev](https://www.amazon.com/dp/B0DMTF44SR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Filtrete 23.5x23.5x1 AC Furnace Air Filter MERV 11 MPR 1000 Micro Allergen Defense 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 2 Pack (Actual Size 23.188x23.188x0.81 in)**Filtrete**$37.85**8 rev10mo ago](https://www.amazon.com/dp/B0FSSYYLVV) [**Filtrete 23.5x23.5x1 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 23.19 x 23.19 x 0.81 in)**Filtrete**$44.77**6,265 rev1y ago](https://www.amazon.com/dp/B0DMTF44SR) [**Simply 23.5x23.5x1 Air Filter Merv 8 4 Pack For Home AC Furnace & HVAC (Actual Size: 23.5x23.5x0.75) DUST Pet & Allergy Control**Simply**$37.32**5,182 rev3y ago](https://www.amazon.com/dp/B0C37P6ZVT) [**Filter King 23.5x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 23.5 x 23.5 x .75)**Filter King**$40.76**4,436 rev3y ago](https://www.amazon.com/dp/B0CPT8XJBV) [**Filtrete 23.5x23.5x1 Air Filter MERV 13 MPR 1900 Allergens Bacteria Viruses & Air Pollutants 3-Month AC/Furnace Filters Cleaner Air Reliable Airflow 6 HVAC Filters(Act Size 23.18x23.18x0.78 in)**Filtrete**$87.86**3,048 rev7y ago](https://www.amazon.com/dp/B07FNQRDQ2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Filter King 23.5x23.5x1 Air Filter (MERV 8) (6-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 23.5 x 23.5 x .75)**Filter King**$50.23**3.5★**▲ 133%**](https://www.amazon.com/dp/B07HFDWCVL) [**Simply 23.5x23.5x1 Air Filter Merv 8 4 Pack For Home AC Furnace & HVAC (Actual Size: 23.5x23.5x0.75) DUST Pet & Allergy Control**Simply**$37.32**4.6★**▲ 133%**](https://www.amazon.com/dp/B0C37P6ZVT) [**Filtrete 23.5x23.5x1 AC Furnace Air Filter MERV 11 MPR 1000 Micro Allergen Defense 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 2 Pack (Actual Size 23.188x23.188x0.81 in)**Filtrete**$37.85**4.8★**▲ 58%**](https://www.amazon.com/dp/B0FSSYYLVV) [**Filterbuy 23.5x23.5x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 23.38 x 23.38 x 0.75)**Filterbuy**$48.38**4.6★**▲ 48%**](https://www.amazon.com/dp/B00CJZ62RY) [**Filter King 23.5x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 23.5 x 23.5 x .75)**Filter King**$40.76**4.7★**▲ 26%**](https://www.amazon.com/dp/B0CPT8XJBV)
**~~View all trending →~~**
## **What buyers say about 23.5 x 23.5 x1 air conditioner filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**50%
*“Great quality”*
**Filtration**25%
*“Really Great filter”*
**Value For Money**13%
*“Worth it”*
**Size-Overall**13%
*“Permit fit”*
### **What buyers complain about **
**Size-Overall**100%
*“Did not fit”*
### **Top return reasons **
**Size-Overall**85%
**Value For Money**5%
**Advertised Vs Actual Product**3%
**Filtration**2%
**Certifications**1%
**Water Resistance**1%
**Jamming/Clogging**1%
**Compatibility-Overall**1%
**Product Condition**1%
## **Common questions**
- **Is 23.5 x 23.5 x1 air conditioner filter profitable to sell on Amazon United States?**
- The niche generates $176K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +56.3%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the 23.5 x 23.5 x1 air conditioner filter niche?**
- 4 brands and 11 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 23.5 x 23.5 x1 air conditioner filter?**
- Top complaints mined from reviews: Size-Overall. The return rate is 0.3%.
- **When does demand for 23.5 x 23.5 x1 air conditioner filter peak?**
- Demand peaks in Jun–Jul; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the 23.5 x 23.5 x1 air conditioner filter niche?**
- Listings span $30.70–$87.86; the average listing price is $50.16 (sweet spot $15–$100). The average incumbent carries 15,007 reviews — the moat a new listing must climb.
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