---
product_id: 45995183
title: "20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 19.88 x 24.63 x 4.31)"
brand: "filtrete"
price: "KSh32006"
currency: KES
in_stock: true
reviews_count: 13
category: "Filtrete"
url: https://www.desertcart.co.ke/products/45995183-20x25x4-ac-furnace-air-filter-mpr-1000-merv-11-fits
store_origin: KE
region: Kenya
---

# 12-month filter life with smart app reminders Exact 19.88x24.63x4.31 in size MERV 11 & MPR 1000 for superior filtration 20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 19.88 x 24.63 x 4.31)

**Brand:** filtrete
**Price:** KSh32006
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe Better, Live Smarter — The Filter Your Home Deserves

## Quick Answers

- **What is this?** 20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 19.88 x 24.63 x 4.31) by filtrete
- **How much does it cost?** KSh32006 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/45995183-20x25x4-ac-furnace-air-filter-mpr-1000-merv-11-fits)

## 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:** Seamlessly fits Honeywell & AprilAire Space-Gard systems for hassle-free installation and optimal performance.
- • **Advanced 3-in-1 Filtration Tech:** Exclusive Filtrete technology captures 2X more microparticles like pollen, pet dander, and smoke for cleaner, healthier air.
- • **Long-Lasting 12-Month Filter Life:** Thick 4-inch design maximizes surface area, extending filter life and reducing replacement frequency.
- • **Smart Maintenance with App Alerts:** Stay ahead with Filtrete Smart App reminders to change filters on your schedule—never miss a beat on air quality.
- • **Certified Allergy & Asthma Friendly:** Trusted by experts to reduce allergens and improve indoor air quality, perfect for sensitive households.

## Overview

The Filtrete 20x25x4 AC Furnace Air Filter by 3M delivers high-efficiency air purification with a MERV 11 and MPR 1000 rating, capturing twice as many microparticles as standard filters. Designed to fit Honeywell and AprilAire Space-Gard systems, its exclusive 3-in-1 electrostatic technology traps allergens, dust, and pollutants while maintaining optimal airflow. With a durable 4-inch thickness and a 12-month lifespan, it offers long-lasting performance supported by smart app reminders, making it the trusted choice for healthier indoor air and HVAC protection.

## 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: High quality air filters for your furnace - The Filtrete 20x25x4 AC Furnace Air Filter is an excellent choice for anyone looking to improve the air quality in their home while ensuring their HVAC system runs efficiently. This air filter not only provides superior filtration but also lasts longer than many standard filters, making it a smart investment. One of the standout features is its impressive ability to capture particles. With a high MERV rating, the Filtrete filter traps dust, pollen, mold spores, pet dander, and even smaller particles like smoke and viruses. After just a short time of use, I noticed a significant improvement in the air quality throughout my home—less dust on surfaces and fewer allergy symptoms, especially for those with sensitivities. Installation is straightforward and easy, fitting snugly into the furnace or AC system without any hassle. The filter’s 4-inch thickness means it has more surface area to capture particles, which also allows for a longer life compared to thinner filters. This means fewer replacements and more time between filter changes, saving both time and money. Another key benefit is that this filter helps maintain the efficiency of your HVAC system by allowing proper airflow while still providing excellent filtration. This is crucial for preventing strain on your system, which can lead to costly repairs down the line. Overall, the Filtrete 20x25x4 AC Furnace Air Filter is a high-quality, reliable air filter that does a fantastic job of keeping your air clean and your HVAC system running smoothly. It’s perfect for homes with pets, allergies, or anyone who wants to breathe cleaner air. Highly recommended!
Review: Perfect fit, air flow solid, and cheaper than from my HVAC company - I have purchased these several times; the quality is excellent, and they clean the air as expected and protect the furnace. My HVAC company used the same brand but charges me more than I paid on desertcart, so I love the savings. They fit perfectly in an old Envirocare filter housing, slide in and out easily, and create no noise or airflow issues.

## 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 4-pack of a 12-month Filtrete Air Filter
- 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 | B01MU27I27 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,463 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #38 in Furnace Filters |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,539) |
| Date First Available | December 19, 2016 |
| Included Components | 4 Filters |
| Item Package Quantity | 1 |
| Item Weight | 2.35 pounds |
| Item model number | NADP03-4IN-4 |
| Manufacturer | 3M |
| Material | Polypropylene |
| Minimum Efficiency Reporting Values (MERV) | 11 |
| Part Number | NADP03-4IN-4 |
| Pattern | Air Filter |
| Product Dimensions | 24.63 x 4.31 x 19.88 inches |
| Size | 20x25x4 |
| Style | CHANGE YOUR FILTER OFTEN: For optimal performance, make sure to change your 4-inch filter at least once every 12 months |
| Warranty Description | Limited |

## Product Details

- **Air Filter Construction:** Pleated
- **Brand:** Filtrete
- **Compatible Devices:** Air Conditioner, Furnace
- **EU Spare Part Availability Duration:** 12 Months
- **Global Trade Identification Number:** 50076308870923
- **Item Weight:** 2.35 Pounds
- **MERV Rating:** 11
- **Material:** Polypropylene
- **Number of Items:** 4
- **Product Dimensions:** 24.63"L x 4.31"W x 19.88"Th

## Images

![20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 19.88 x 24.63 x 4.31) - Image 1](https://m.media-amazon.com/images/I/617UTQY4ArL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality air filters for your furnace
*by N***Y on October 23, 2024*

The Filtrete 20x25x4 AC Furnace Air Filter is an excellent choice for anyone looking to improve the air quality in their home while ensuring their HVAC system runs efficiently. This air filter not only provides superior filtration but also lasts longer than many standard filters, making it a smart investment. One of the standout features is its impressive ability to capture particles. With a high MERV rating, the Filtrete filter traps dust, pollen, mold spores, pet dander, and even smaller particles like smoke and viruses. After just a short time of use, I noticed a significant improvement in the air quality throughout my home—less dust on surfaces and fewer allergy symptoms, especially for those with sensitivities. Installation is straightforward and easy, fitting snugly into the furnace or AC system without any hassle. The filter’s 4-inch thickness means it has more surface area to capture particles, which also allows for a longer life compared to thinner filters. This means fewer replacements and more time between filter changes, saving both time and money. Another key benefit is that this filter helps maintain the efficiency of your HVAC system by allowing proper airflow while still providing excellent filtration. This is crucial for preventing strain on your system, which can lead to costly repairs down the line. Overall, the Filtrete 20x25x4 AC Furnace Air Filter is a high-quality, reliable air filter that does a fantastic job of keeping your air clean and your HVAC system running smoothly. It’s perfect for homes with pets, allergies, or anyone who wants to breathe cleaner air. Highly recommended!

### ⭐⭐⭐⭐⭐ Perfect fit, air flow solid, and cheaper than from my HVAC company
*by N***G on December 12, 2025*

I have purchased these several times; the quality is excellent, and they clean the air as expected and protect the furnace. My HVAC company used the same brand but charges me more than I paid on Amazon, so I love the savings. They fit perfectly in an old Envirocare filter housing, slide in and out easily, and create no noise or airflow issues.

### ⭐⭐⭐⭐⭐ A reliable, high-quality option for anyone looking to improve the air quality in their home
*by A***E on November 13, 2023*

I recently purchased the Filtrete 20x25x4 Air Filter set, and it has been a game-changer for the air quality in my home. As someone who is sensitive to allergens and dust, finding an effective air filter is crucial, and this product has met all my expectations. Firstly, the packaging and quantity are ideal. The 4-pack ensures I have enough filters for an entire year, as each one lasts for about 12 months. This is incredibly convenient and saves me the hassle of frequent replacements. The actual size of the filters, 19.88 x 24.63 x 4.31 inches, is slightly different from the nominal size, but they fit perfectly in my furnace. It's important to check the exact dimensions before purchasing to ensure a proper fit. The performance of these filters is outstanding. They're designed with Filtrete's exclusive 3-in-1 technology, which effectively pulls in and traps unwanted particles. I've noticed a significant reduction in dust and allergens in my home since I started using them. The air feels cleaner and fresher, which has been beneficial for my allergies. The MPR 1000 and MERV 11 rating of the filters mean they capture a wide range of microparticles, from dust to pollen and other allergens. This feature is particularly important for anyone looking to improve their indoor air quality. I appreciate the versatility of these filters. They are compatible with various furnace models, including Honeywell and Lennox, which is great for people with different systems in their homes. The option to subscribe and save is a nice touch. Being able to set up a delivery schedule and save money on orders makes the process even more convenient and cost-effective.

## Frequently Bought Together

- Filtrete 20x25x4 AC Furnace Air Filter, MPR 1000, MERV 11, Fits Honeywell & AprilAire Space-Gard, Allergen Defense, Electrostatic Air Cleaning Filter, 4-Pack (actual size 19.88 x 24.63 x 4.31)
- Simply 16x25x1 Air Filter, MERV 8, MPR 600, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 15.75"x24.75"x0.75") DUST, Pet, & Allergy Control
- Filtrete 20x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-26*