---
product_id: 37415059
title: "AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA"
brand: "airx filters"
price: "€ 167.80"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.gr/products/37415059-airx-filters-allergy-merv-11-ac-furnace-pleated-air-filter
store_origin: GR
region: Greece
---

# Heat-resistant up to 225°F MERV 11 high-efficiency filtration 100% USA-made premium materials AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA

**Brand:** airx filters
**Price:** € 167.80
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your air game — because your home deserves the best!

## Quick Answers

- **What is this?** AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA by airx filters
- **How much does it cost?** € 167.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/37415059-airx-filters-allergy-merv-11-ac-furnace-pleated-air-filter)

## Best For

- airx filters enthusiasts

## Why This Product

- Trusted airx filters brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Withstand the Heat:** Electrostatically charged synthetic media endures furnace temps up to 225°F without losing performance.
- • **Breathe Cleaner, Live Better:** MERV 11 rating captures allergens & contaminants for healthier indoor air.
- • **Crafted with American Quality:** Proudly made in the USA with moisture-resistant double-wall beverage board for durability.
- • **Fits Perfectly, Works Seamlessly:** Precision 18x20x1 size ensures easy installation and compatibility with most HVAC systems.
- • **Certified Frustration-Free Packaging:** Hassle-free unboxing so you can upgrade your air quality without delay.

## Overview

AIRx Filters Allergy MERV 11 18x20x1 furnace air filters deliver superior allergen and contaminant reduction with electrostatically charged synthetic media. Engineered to withstand furnace temperatures up to 225°F, these filters are built with durable, moisture-resistant materials and proudly made in the USA. Designed for easy installation and certified frustration-free packaging, this 6-pack ensures your HVAC system runs efficiently while improving your indoor air quality.

## Description

AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA

## Features

- ✔️ MERV 11 Rated Replacement 18x20x1 Furnace Filter: AIRx Filters 18x20x1 (Actual: 17.50 x 19.50 x 0.75 in) MERV 11 air filter assures the effectiveness of your home HVAC system resulting to efficient heating, ventilation and air conditioning
- ✔️ Contaminant Reducing Replacement 18x20x1 Filter: AIRx Filters 18x20x1 air filter replacement (Actual: 17.50x19.50x.75 in). A very high quality 18 x 20 x 1.
- ✔️High Quality 18x20x1 Furnace Filter by AirX. Air Filter Replacement Material: AIRx Filters 18x20x1 air filter (Actual: 17.50 x 19.50 x 0.75 in) is 100% made in the USA using high quality air filter moisture resistant double-wall beverage board. This is a very solid filter frame for a 18x20x1 filter.
- ✔️Superior Air Filtration Replacement Construction And Specs: AIRx Filters 18x20x1 air filter uses electrostatically charged 100% synthetic gradient media can perform at temperature ranging from 180F (82C) continuous service, peak 225F (107C). Our furnace filters 18x20x1 can withstand the heat from your furnace!
- ✔️ 18x20x1 air filter merv 11 Filter Replacement Compatible AIRx Filters 18x20x1 MERV 11 air filter can replace and/or comparable with Allergen Defense MPR 1000 1085 1200, Odor Reduction MPR 1200 18x20x1 air filter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | AIRx |
| Part Number | ALLERGY-182001-6 |
| Item Weight | 9.3 ounces |
| Item model number | ALLERGY-182001-6 |
| Is Discontinued By Manufacturer | No |
| Size | 19.5" x 17.5" x 0.8" |
| Color | White |
| Style | Air Filter |
| Material | Synthetic |
| Pattern | 18 x 20 x 1 |
| Shape | Square |
| Item Package Quantity | 1 |
| Minimum Efficiency Reporting Values (MERV) | 11 |
| Certification | certified frustration-free |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 1 year manufacturer |

## Product Details

- **Brand:** AIRx Filters
- **Material:** Synthetic
- **Product Dimensions:** 17.5"L x 19.5"W x 0.75"Th
- **MERV Rating:** 11
- **Compatible Devices:** Air Conditioner, Furnace
- **Item Weight:** 0.58 Pounds
- **Global Trade Identification Number:** 00856781006256
- **UPC:** 856781006256
- **Air Filter Construction:** Pleated
- **Number of Items:** 1

## Images

![AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA - Image 1](https://m.media-amazon.com/images/I/61XNdcKkdRL.jpg)
![AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA - Image 2](https://m.media-amazon.com/images/I/61owMT-FmrL.jpg)
![AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA - Image 3](https://m.media-amazon.com/images/I/71g-dDxrMBL.jpg)
![AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA - Image 4](https://m.media-amazon.com/images/I/41fbQKnStHL.jpg)
![AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA - Image 5](https://m.media-amazon.com/images/I/61Vl1hkCl8L.jpg)

## Available Options

This product comes in different **Pattern Name, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy buy
*by L***. on May 1, 2025*

For the price of these filters they work perfectly. I change out my filter almost monthly, it keeps the dust down and I burn a candle after dinner. They do the job.

### ⭐⭐⭐⭐⭐ JUST AS ADVERTIZED
*by D***L on May 9, 2025*

JUST AS ADVERTIZED

### ⭐⭐⭐⭐⭐ No Fancy Packaging, But Good Filters
*by N***N on January 10, 2017*

UPDATE: FYI! Watch your price on these... When I originally bought them in January 2017, they were $37.92 plus tax for a box of 6, but when I went to re-order them in August 2018, the price was jacked up to $50 and change before tax. Sooo... This year, I purchased "Aerostar Pleated Air Filter, MERV 13, 16x25x1, Pack of 6, Made in the USA" @ $37.99 instead, which--as you can see by the description--is an upgraded filter for the same price as I paid for these last year (MERV 13 vs. MERV 11).Before I purchased these, I did a lot of research as to what the different rating systems mean (MERV vs. MPR vs. DPR), who developed them, and how they compare to each other. Google it if you're curious. Very helpful. Armed with this knowledge, I purchased these filters and I'm happy with them. A few notes about the concerns of some of the other reviewers now that I've purchased these myself...1) "No markings on the filter--is this what I paid for?" - The MERV rating is very easy to miss, but it is there, so I've included a picture. (It's on the filter material, not on the frame.) Also, the brand and size can be found on the outside of the shipping box, which also doubles as a storage box for the filters, and features a label on the side where you can record the dates you've changed your filters. I've included pictures of all this, as well.My assumption about the lack of fancy packaging, color print, and copious labeling is that this is part of the reason these filters are offered at such an affordable price. I'll take it, especially since these are made in the USA. (Nobody sees the filter once it goes inside the unit, so I don't really care about the packaging. I just care that it does the job.)2) "I would've liked more folds." - The filters I received have a comparable number of folds to my old, name-brand filters. While I was looking at this, I noticed that the frame of these filters is actually sturdier than my name-brand filters on the non-airflow side, so I've also included pictures of both sides of each filter for comparison.3) "Annoying whistle." - I have not experienced this with the filters I received. I am happy with these filters, and will be purchasing again when needed.

## Frequently Bought Together

- AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA
- Simply 18x20x1 Air Filter, MERV 8, MPR 600, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 17.75"x19.75"x0.75") DUST, Pet, & Allergy Control

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**Shop now:** [https://www.desertcart.gr/products/37415059-airx-filters-allergy-merv-11-ac-furnace-pleated-air-filter](https://www.desertcart.gr/products/37415059-airx-filters-allergy-merv-11-ac-furnace-pleated-air-filter)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-20*