---
product_id: 446930175
title: "Filtrete 20x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Honeywell & AprilAire, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in)"
brand: "filtrete"
price: "$479.89"
currency: USD
in_stock: true
reviews_count: 13
category: "Filtrete"
url: https://www.desertcart.us/products/446930175-filtrete-20x25x4-air-filter-merv-11-mpr-1000-micro-allergen
store_origin: US
region: United States of America
---

# Exact 19.88x24.63x4.31 in size Smart app reminders for filter changes MERV 11 & MPR 1000 for superior filtration Filtrete 20x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Honeywell & AprilAire, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in)

**Brand:** filtrete
**Price:** $479.89
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe Brilliance: Elevate your air, elevate your life!

## Quick Answers

- **What is this?** Filtrete 20x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Honeywell & AprilAire, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in) by filtrete
- **How much does it cost?** $479.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/446930175-filtrete-20x25x4-air-filter-merv-11-mpr-1000-micro-allergen)

## Best For

- filtrete enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit for Top Brands:** Specifically engineered to fit Honeywell & AprilAire Space-Gard systems perfectly, ensuring seamless installation and optimal airflow.
- • **Advanced 3-in-1 Filtration Tech:** Exclusive Filtrete technology captures 2X more microparticles like pet dander, smoke, and pollen for noticeably cleaner indoor air.
- • **Long-Lasting 12-Month Performance:** Durable 4-inch thick filter designed to maintain peak efficiency for a full year, minimizing maintenance hassle.
- • **Smart Maintenance with App Alerts:** Stay ahead of air quality with Filtrete Smart App notifications, so you never miss the perfect time to refresh your filter.
- • **Certified Allergy & Asthma Friendly:** Backed by certification to reduce allergens, making your home a sanctuary for sensitive lungs and wellness-focused living.

## Overview

The Filtrete 20x25x4 AC Furnace Air Filter by 3M combines precise sizing with MERV 11 and MPR 1000 ratings to trap twice as many microparticles as standard filters. Designed for Honeywell and AprilAire Space-Gard systems, this 2-pack features exclusive 3-in-1 electrostatic technology certified for allergy and asthma relief. With a durable 4-inch thickness and smart app reminders, it ensures a full year of cleaner, healthier air in your home.

## Description

Filtrete 20x25x4 MPR 1000 Air Filter, made by 3M, helps capture unwanted particles from your household air to contribute to a cleaner, fresher home environment. Designed with exclusive Filtrete 3-in-1 technology, including an MPR 1000 and MERV 11 rating, your AC filter will help pull and capture countless microparticles – such as pet dander, smoke and smog – while letting cleaner air flow through. Your Filtrete Filter will also capture large particles, including lint, pollen, mold spores and household dust. Use a 12-month 4-inch home HVAC filter in your furnace, air conditioner or HVAC system. For optimal performance of your heating and cooling system or HVAC system, change your 4-inch furnace filter at least once per year. Fits systems calling for a filter thickness of 4.31" and larger. Filtrete Brand is North America’s most trusted brand of HVAC Filters (1). (1) Based on 2024 Sago US Brand Health Survey of Residential HVAC Air Filters (2) % captured is based on ASHRAE 52.2 testing for 0.3 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing.

Review: Perfect Replacement for Honeywell F300 and F50F Electronic Filter Modules - We have had a Honeywell F50F Electronic furnace filter with its two high voltage collection modules for over 25 years and it just does not seem to be collecting the dust like it used to. That lack of apparent dust collection, combined with a lot of sneezing in the morning when the furnace turns on, prompted us to look at replacing the Honeywell electronic filter. After some research and careful measurements we discovered we could replace the original electronic metal modules with passive media filters and determined that the Filtrete 20x25x4, AC Furnace Air Filter MPR 1000 should fit....AND IT DOES! A perfect fit in all dimensions. The only thing is one needs to remove a guide in the bottom center of the Honeywell housing which is easily done with a screw driver (see the attached picture). Once that is removed the filter slides in with enough friction that we know it provides good air seal on all edges. The length was also perfect and the housing door closes securely. See the attached picture when installed in the Honeywell housing. This MERV 11 filter has only been installed for a few days but during the morning furnace house warm up, there was no sneezing so I have high hopes this filter or even the more effective MERV 13 version will be our ultimate solution to the F50F electronic modules replacement. The paper pleats would not be cleanable with compresses air without destroying the small particle filtering and as its paper it cannot be washed and must be replaced. The packaging for the filter states it is good for 1 year and at $60 for 2 filters, that's a very reasonable annual maintenance cost for the filter replacement and our health. This filter will fit into either the F50F or the F300 Electronic Filter housing. Just be sure to turn off or remove the power to the F50F module. The package comes with 2 filters so we are good for 2 years of sneezeless mornings!
Review: Good quality filters for my home AC/heater. - Self installed one of the filters three months ago and all seems good so far. Good value for a multi pack.

## Features

- DIFFERENT FROM NOMINAL SIZE: Slightly different from the nominal size, this air filter’s exact dimensions are 19.88 in x 24.63 in x 4.31 in, This item is a 2-pack of 12-month Filtrete Air Filters
- DESIGNED TO FIT: Honeywell and Space-Gard brand media air cleaners
- MAKE YOUR HOME YOUR SANCTUARY: 1000 MPR + MERV 11 rating helps capture up to 2X more microparticles than MERV alone(2)
- EXCLUSIVE TECHNOLOGY: Designed with exclusive Filtrete 3-in-1 technology to pull in and trap unwanted particles, allowing cleaner air to flow through
- CERTIFIED: This furnace filter is CERTIFIED asthma and allergy-friendly (2) and helps capture dust, lint and other allergens in your household air
- CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your 4-inch filter at least once every 12 months
- SMART APP: Use the Filtrete Smart App (iOS or Android) to set 90-, 180- or 365-day reminders to change your air filter
- MOST TRUSTED: Filtrete Brand is North America’s most trusted brand of HVAC Filters, based on 2024 Sago US Brand Health Survey of Residential HVAC Air Filters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09RQCX5YR |
| Air Filter Construction | Pleated |
| Best Sellers Rank | #482 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Furnace Filters |
| Brand | Filtrete |
| Brand Name | Filtrete |
| Common Applications | Appliances, Residential |
| Compatible Devices | Air Conditioner, Furnace |
| Customer Reviews | 4.7 out of 5 stars 1,902 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Filter Shape | Rectangular |
| Global Trade Identification Number | 00051141349831, 00068060467775 |
| Included Components | 2 Filters |
| Item Dimensions L x W x Thickness | 24.63"L x 19.88"W x 4.31"Th |
| Item Type Name | replacement-household-furnace-filters |
| Item Weight | 4.7 Pounds |
| MERV Rating | 11.0 |
| Manufacturer | 3M |
| Manufacturer Part Number | NADP03-2PK-1E |
| Material | Polypropylene |
| Material Type | Polypropylene |
| Model Number | NADP03-2PK-1E |
| Number of Items | 2 |
| Product Dimensions | 24.63"L x 19.88"W x 4.31"Th |
| Product Grade | new |
| Unit Count | 2.0 Count |
| Warranty Description | Limited Warranty. This 3M product will be free from defects in material and manufacture. If this 3M product is defective, your exclusive remedy shall be, at 3M's option, replacement of the 3M product or refund of the purchase price of the 3M product. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country. To obtain war… |

## Product Details

- **Brand:** Filtrete
- **Material:** Polypropylene
- **Product Dimensions:** 25"L x 20"W x 4"Th
- **MERV Rating:** 11
- **Compatible Devices:** Air Conditioner, Furnace
- **EU Spare Part Availability Duration:** 1 Years
- **Item Weight:** 4.7 Pounds
- **Global Trade Identification Number:** 00051141349831, 00068060467775
- **Number of Items:** 2
- **Manufacturer:** 3M

## Images

![Filtrete 20x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Honeywell & AprilAire, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in) - Image 1](https://m.media-amazon.com/images/I/71J+TdQHIWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Replacement for Honeywell F300 and F50F Electronic Filter Modules
*by R***Z on December 6, 2022*

We have had a Honeywell F50F Electronic furnace filter with its two high voltage collection modules for over 25 years and it just does not seem to be collecting the dust like it used to. That lack of apparent dust collection, combined with a lot of sneezing in the morning when the furnace turns on, prompted us to look at replacing the Honeywell electronic filter. After some research and careful measurements we discovered we could replace the original electronic metal modules with passive media filters and determined that the Filtrete 20x25x4, AC Furnace Air Filter MPR 1000 should fit....AND IT DOES! A perfect fit in all dimensions. The only thing is one needs to remove a guide in the bottom center of the Honeywell housing which is easily done with a screw driver (see the attached picture). Once that is removed the filter slides in with enough friction that we know it provides good air seal on all edges. The length was also perfect and the housing door closes securely. See the attached picture when installed in the Honeywell housing. This MERV 11 filter has only been installed for a few days but during the morning furnace house warm up, there was no sneezing so I have high hopes this filter or even the more effective MERV 13 version will be our ultimate solution to the F50F electronic modules replacement. The paper pleats would not be cleanable with compresses air without destroying the small particle filtering and as its paper it cannot be washed and must be replaced. The packaging for the filter states it is good for 1 year and at $60 for 2 filters, that's a very reasonable annual maintenance cost for the filter replacement and our health. This filter will fit into either the F50F or the F300 Electronic Filter housing. Just be sure to turn off or remove the power to the F50F module. The package comes with 2 filters so we are good for 2 years of sneezeless mornings!

### ⭐⭐⭐⭐⭐ Good quality filters for my home AC/heater.
*by M***2 on June 9, 2026*

Self installed one of the filters three months ago and all seems good so far. Good value for a multi pack.

### ⭐⭐⭐⭐⭐ Perfect Fit, Excellent Condition Every Time
*by A***R on March 8, 2026*

My local big-box stores don’t carry filters in this size for my HVAC system. These fit exactly as advertised and are very easy to install. They always arrive in excellent condition with no damage and do a great job capturing dust. These have become my go-to filters.

## Frequently Bought Together

- Filtrete 20x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters
- Filtrete 16x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Lennox & Honeywell Devices, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 15.88 x 24.56 x 4.31)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/446930175-filtrete-20x25x4-air-filter-merv-11-mpr-1000-micro-allergen](https://www.desertcart.us/products/446930175-filtrete-20x25x4-air-filter-merv-11-mpr-1000-micro-allergen)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-24*