---
product_id: 208048584
title: "Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38)"
brand: "filterbuy"
price: "1294 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/208048584-filterbuy-20x20x5-air-filter-merv-11-superior-pet-and-allergy
store_origin: RO
region: Romania
---

# Electrostatic 3x longer life Recyclable durable frame MERV 11 allergen defense Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38)

**Brand:** filterbuy
**Price:** 1294 Lei
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your air game—because your home deserves elite defense!

## Quick Answers

- **What is this?** Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38) by filterbuy
- **How much does it cost?** 1294 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/208048584-filterbuy-20x20x5-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

- • **Fits Your Trusted Systems:** Compatible with Honeywell, Lennox, and more—perfect for whole-house air purification.
- • **Breathe Cleaner, Live Better:** MERV 11 synthetic media captures 95% of dust & allergens for superior air quality.
- • **Stay Ahead of Allergies & Pets:** Engineered for pet owners and allergy sufferers who demand cleaner, fresher air year-round.
- • **Effortless Upgrade for Your HVAC:** Easy-install recyclable beverage board frame with dual wire backing resists heat and wear.
- • **Built to Last, Designed to Perform:** Electrostatically charged pleated filters trap microscopic particles and outlast fiberglass by 3x.

## Overview

Filterbuy’s 20x20x5 MERV 11 air filters deliver advanced allergen and pet dander protection with 95% dust capture efficiency. Featuring electrostatically charged media and a durable recyclable frame, these pleated filters last 3x longer than standard fiberglass models. Compatible with major HVAC brands like Honeywell and Lennox, they ensure easy installation and whole-house air quality improvement for health-conscious professionals.

## Description

Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38)

## Features

- WHOLE HOUSE REPLACEMENT: 20x20x5 air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 19.63" x 19.88" x 4.38")
- MERV 11 PERFORMANCE: Protect your home or business from allergens, pets, and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% of dust without restricting air flow
- LASTING FILTRATION: Electrostatically charged media (made in the USA) with 8 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for best results)
- SUPERIOR CONSTRUCTION: Easy installation beverage board (recyclable) frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures
- COMPATIBLE MODELS: Honeywell / Air Demon Filter Part Numbers F25 (#203721), F35 / F35R (#FC35A1019), F100 / F150 (#FC100A1011), F200 (#FC200E1011), Lennox (X0585, X8305, X8308), Collection Cells (F25F1018, F35F1016, F100F1020, F50A1124, F50A1165, F50E1026, F50E1182, F50E6124, F50E6165, F50E8021, F50E8062, F50F1107, F50F1040, F55A1244, F55A1426, F55A1459, F55F1029, F55F1052, F58A1050, F58F1026, F300E1027)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand Name | Filterbuy |
| Model Info | HRF20x20x5M11pk2 |
| Item Weight | 7.5 pounds |
| Product Dimensions | 19.63 x 19.81 x 4.38 inches |
| Item model number | HRF20x20x5M11pk2 |
| Is Discontinued By Manufacturer | No |
| Part Number | HRF20x20x5M11pk2 |
| Special Features | Dust Collection, Easy to Install, Removable |
| Color | Gold |
| Compatible Device | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
| Material Type | Aluminum, Plastic, Polypropylene |
| Included Components | Air Filters |
| Batteries Included? | No |
| Batteries Required? | No |
| Manufacturer Warranty | Parts |

## Product Details

- **Brand:** Filterbuy
- **Material:** Aluminum, Plastic, Polypropylene
- **Product Dimensions:** 19.88"L x 19.63"W x 4.38"Th
- **MERV Rating:** 11
- **Compatible Devices:** Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump
- **Item Weight:** 7.5 Pounds
- **Max Temperature:** 200 Degrees Fahrenheit
- **UPC:** 717267200240
- **Air Filter Construction:** Pleated
- **Number of Items:** 1

## Images

![Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38) - Image 1](https://m.media-amazon.com/images/I/71Lz3wOMLAL.jpg)
![Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38) - Image 2](https://m.media-amazon.com/images/I/81xMRTKUcFL.jpg)
![Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38) - Image 3](https://m.media-amazon.com/images/I/81K+yHEsdyL.jpg)
![Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38) - Image 4](https://m.media-amazon.com/images/I/71wVFN40iPL.jpg)
![Filterbuy 20x20x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Pleated HVAC AC Furnace Filters for Honeywell FC100A1011, Lennox X0585, and More (Actual Size: 19.63 x 19.88 x 4.38) - Image 5](https://m.media-amazon.com/images/I/81irQZRd-nL.jpg)

## Available Options

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

## Questions & Answers

**Q: Why should I change my air filter?**
A: To maintain a healthy lifestyle, as breathing dirty air can put you at risk to develop asthma, allergies, and other respiratory ailments. Plus, old filters can cause system defects which may lead to unwanted expenses via energy costs and repairs.

**Q: When should I change my air filter?**
A: We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean. But this is subject to change based on filter size and variable factors for pet owners, allergy sufferers, homes with children, etc.

**Q: Will these air filters fit my system?**
A: Most of our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system as long as you choose the proper size. But if you see a specific brand name on a listing, make sure it matches your unit model.

**Q: How many air filters do I need?**
A: This varies for every customer depending on specific needs such as the number of vents in your home. However, our selection includes package quantities that range from 1 to 12 filters, so no matter what your situation may be, we've got you covered.

**Q: How do I change my air filter?**
A: After finding the right size, turn off the power supply and remove the cover from your intake vent before taking out the old filter. Then just insert your new filter to match the direction of air flow, replace the cover, and turn the power back on.

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-03-10*