---
product_id: 80168099
title: "Filterbuy 21x22x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 21.50 x 0.75)"
brand: "filterbuy"
price: "A$248"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/80168099-filterbuy-21x22x1-air-filter-merv-11-superior-pet-and-allergy
store_origin: AU
region: Australia
---

# MERV 11 filtration Easy installation 95% dust capture Filterbuy 21x22x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 21.50 x 0.75)

**Brand:** filterbuy
**Price:** A$248
**Availability:** ✅ In Stock

## Summary

> 🌬️ Filter Your Way to Freshness!

## Quick Answers

- **What is this?** Filterbuy 21x22x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 21.50 x 0.75) by filterbuy
- **How much does it cost?** A$248 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/80168099-filterbuy-21x22x1-air-filter-merv-11-superior-pet-and-allergy)

## Best For

- filterbuy enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Enjoy 3x longer lifespan than standard filters, ensuring your air quality remains top-notch.
- • **Precision Fit:** Designed to fit perfectly in your HVAC system, ensuring optimal airflow and performance.
- • **Eco-Friendly Choice:** Crafted from recyclable materials, making your home healthier and the planet happier.
- • **American Made Quality:** Proudly manufactured in the USA with industrial-grade components for superior durability.
- • **Breathe Easy, Live Better:** Experience cleaner air with MERV 11 filtration that protects against allergens and dust.

## Overview

The Filterbuy 21x22x1 Air Filter MERV 11 Allergen Defense (6-Pack) is designed to enhance your indoor air quality by trapping 95% of dust particles while maintaining optimal airflow. With a durable construction and easy installation, these filters are perfect for your HVAC system, ensuring a healthier home environment. Made in the USA with eco-friendly materials, they last three times longer than traditional fiberglass filters.

## Description

Full description not available

## Features

- 21x22x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 20.50" x 21.50" x 0.75")
- MERV 11 synthetic media (comparable with MPR 1000 - 1200 & FPR 7) protects homes from pets, allergies, and more while trapping 95% of dust particles without impacting air flow
- High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
- Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
- Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Filterbuy |
| Model Info | AFB21x22x1M11pk6 |
| Item Weight | 0.01 ounces |
| Product Dimensions | 20.5 x 21.5 x 0.75 inches |
| Country of Origin | USA |
| Item model number | AFB21x22x1M11pk6 |
| Is Discontinued By Manufacturer | No |
| Part Number | AFB21x22x1M11pk6 |
| Special Features | Easy to Install, Dust Collection, Removable |
| Color | Gold |
| Compatible Device | Heat Pump, Air Conditioner, Air Cleaner, HVAC System, Furnace |
| Material Type | Aluminum, Polypropylene, Plastic |
| Included Components | Air Filters |
| Batteries Included? | No |
| Batteries Required? | No |
| Manufacturer Warranty | Parts |

## Product Details

- **Brand:** Filterbuy
- **Material:** Aluminum, Polypropylene, Plastic
- **Product Dimensions:** 21.5"L x 20.5"W x 0.75"Th
- **MERV Rating:** 11.00
- **Compatible Devices:** Heat Pump, Air Conditioner, Air Cleaner, HVAC System, Furnace
- **Item Weight:** 0.01 Ounces
- **UPC:** 717267078030
- **Number of Items:** 1
- **Manufacturer:** Filterbuy
- **Product Grade:** Replacement Parts

## Images

![Filterbuy 21x22x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 21.50 x 0.75) - Image 1](https://m.media-amazon.com/images/I/81zja5qcKcL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Filterbuy 21x22x1 Air Filter MERV 11 Allergen Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 20.50 x 21.50 x 0.75 Inches)
- Filterbuy 18x18x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.75 x 17.75 x 0.75 Inches)
- Filterbuy 12x24x2 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 11.38 x 23.38 x 1.75 Inches)

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**Shop now:** [https://www.desertcart.com.au/products/80168099-filterbuy-21x22x1-air-filter-merv-11-superior-pet-and-allergy](https://www.desertcart.com.au/products/80168099-filterbuy-21x22x1-air-filter-merv-11-superior-pet-and-allergy)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-05*