---
product_id: 57046157
title: "Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97)"
brand: "filterbuy"
price: "601661CFA"
currency: XOF
in_stock: true
reviews_count: 8
url: https://www.desertcart.sn/products/57046157-filterbuy-21x23-5x5-air-filter-merv-8-dust-and-allergy
store_origin: SN
region: Senegal
---

# Precise 20.00 x 23.09 x 4.97 in fit Durable recyclable beverage board frame MERV 8 blocks 90% dust & allergens Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97)

**Brand:** filterbuy
**Price:** 601661CFA
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe Better, Live Smarter — Filterbuy Your Air, Own Your Space!

## Quick Answers

- **What is this?** Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97) by filterbuy
- **How much does it cost?** 601661CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/57046157-filterbuy-21x23-5x5-air-filter-merv-8-dust-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

- • **Robust & Eco-Friendly Frame:** Recyclable beverage board with dual wire backing resists warping and extreme temperatures for reliable durability.
- • **Advanced MERV 8 Filtration Power:** Captures 90% of airborne particles like pollen, mold, and lint, safeguarding your indoor air quality.
- • **Long-Lasting Electrostatic Pleats:** 8 pleats per foot trap microscopic particles and last 3x longer than standard fiberglass filters.
- • **Tailored Fit for Peak HVAC Efficiency:** Exact dimensions ensure seamless installation and optimal airflow for your Trane & American Standard systems.
- • **Hassle-Free Home Delivery & Subscription:** Never run out—custom sizes shipped fast with optional subscription discounts for continuous clean air.

## Overview

Filterbuy’s 21x23.5x5 MERV 8 air filters deliver precision fit and superior filtration for Trane Perfect Fit and American Standard HVAC systems. Featuring electrostatically charged pleated media that captures 90% of dust and allergens, these durable, recyclable filters last three times longer than fiberglass alternatives. Designed for easy installation and backed by a robust US-based supply chain, they ensure your home or business enjoys cleaner air and enhanced system efficiency with every replacement.

## Description

At Filterbuy, we pride ourselves on being a one stop shop for all of your air conditioner, furnace, or HVAC system filter replacements. This is why we offer hundreds of custom sizes in a variety of filtration ratings to ensure that you can find the perfect fit, regardless of your specific needs. This helps us achieve our goal of providing you, your family, and your community access to clean indoor air that enables you to live and breathe freely.
We offer premium features that provide an enhanced filtration experience via a pleated, electrostatic design that captures more particles and a reinforced beverage board frame capable of withstanding extreme temperatures.
We give customers the ability to simply purchase the exact filter size they need from the comfort of their homes. Plus, our robust supply chain ensures that we can deliver these custom sizes quickly at no extra cost.
We love being able to provide a service that helps keep our community healthy.
Measurement System
Rates the ability of filters to trap particles on a scale of 1-20 (smallest microns captured at 20).
Standard Protection (90%)
Perfect for almost any home or business that wants great indoor air quality at a reasonable rate.
Superior Protection (95%)
Perfect for homes or businesses accounting for factors like pets, smokers, and allergy sufferers.
Optimal Protection (98%)
Perfect for larger homes or businesses, and those who want the best possible filtration experience.
Odor Eliminator (90%)
Perfect for homes or businesses that want to inhibit unpleasant smells with reliable MERV 8 quality.
21x23.5x5 MERV 8
21x23.5x5 MERV 11
21x23.5x5 MERV 13
16x25x5 MERV 8 (Popular)
20x20x5 MERV 8 (Popular)
20x25x5 MERV 8 (Popular)
20x25x6 MERV 8 (Popular)
The nominal size is a shorthand number rounded to the nearest whole or half inch, normally in a larger font (ex: 16 x 20 x 1). Whereas the actual size is an exact measurement, normally in a smaller font, that depicts the filter's precise dimensions (ex: 15.50 x 19.50 x 0.75). All filters have both.
If your current air filter does not have a dimension listed on the frame, use a tape measure to record the width x length x depth to find the actual size. Then round these measurements up to the nearest inch to find a corresponding nominal size, which will be easier to locate when searching online.
Why should I change my air filter?
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.
When should I change my air filter?
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.
Will these air filters fit my system?
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.
How many air filters do I need?
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.
How do I change my air filter?
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.
At Filterbuy, we care about the air you breathe because we consider it the foundation for maintaining a healthy lifestyle. Cleaner air is always better, and we are firm believers that everyone, everywhere deserves to breathe it. This is why we work around the clock to ensure that you, your family, and your community have access to clean indoor air, free of allergens and pollutants, that enables you to routinely live free and breathe freely.
We now offer a variety of expert services and hundreds of custom air filter sizes that are compatible with a near infinite number of systems, because we know that when it comes to clean air, there isn’t a one size fits all solution. This enables us to always provide value with a quality product that empowers you to protect your home or business, regardless of your filtration needs.
Our new, green frames are constructed with the same high quality materials that you have grown accustomed to. We made the decision to switch to this greener design to help symbolize the peace of mind that comes from knowing your home or business is being properly cared for. When you see Filterbuy green, you can exhale with the confidence that you are breathing crisp, pure, fresh air.
From our first air filter produced in 2013, we have proudly built our business in the USA, now manufacturing in Alabama, California, Florida, Illinois, North Carolina, Pennsylvania, Texas, and Utah. This robust, homegrown network gives us the unique ability to swiftly fulfill diverse, custom orders directly to the doors of households and businesses across the country at premium rates.
The nature of air filters requires them be replaced regularly, but opting into a subscription service can help to simplify that process. All you need to do is find the right product and choose the delivery interval. We do the rest by making sure your filters arrive on time as requested. The majority of our desertcart catalog is already eligible for the program, and you even get a discount on every delivery when you enroll, making it an easy choice.
Our small, family-owned and operated company has evolved since its inception in 1958 to the filtration business that you know and love today with thousands of employees serving millions of customers. As our team continues to expand to new neighborhoods across the country, we make sure to stay true to our values by keeping our commitment to community investment and personal aid at every possible opportunity.

## Features

- WHOLE HOUSE REPLACEMENT: 21x23.5x5 air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 20.00" x 23.09" x 4.97")
- MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow
- LONG-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 180 days for optimal performance)
- SUPERIOR CONSTRUCTION: Easy installation beverage board (recyclable) frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
- COMPATIBLE MODELS: Trane Perfect Fit (BAYFTAH23M), American Standard (FLR06073)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Air Filter Construction | Pleated |
| Asin | B01MQSRAC8 |
| Best Sellers Rank | #323 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #24 in Furnace Filters |
| Brand Name | Filterbuy |
| Common Applications | Allergen Reduction, High Strength |
| Compatible Devices | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
| Compatible Hvac Systems | Commercial, Industrial, Residential |
| Customer Reviews | 4.7 4.7 out of 5 stars (173) 4.7 out of 5 stars |
| Eu Spare Part Availability Duration | 90 days |
| Filter Airflow Direction | Variable |
| Filter Mounting Type | Slide In |
| Filter Shape | Rectangular |
| Included Components | Air Filters |
| Item Dimensions L X W X Thickness | 23.09"L x 20"W x 4.97"Th |
| Item Type Name | Air Filter |
| Item Weight | 7.5 pounds |
| Manufacturer | Filterbuy |
| Manufacturer Part Number | TRF21x23.5x5M8pk2 |
| Material Type | Aluminum, Plastic, Polypropylene |
| Max Temperature | 200 °F |
| Max Velocity | 615 cfm |
| Merv Rating | 8 |
| Model Number | TRF21x23.5x5M8pk2 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Product Grade | Replacement Parts |
| Unit Count | 2 Count |
| Upc | 717267205443 |
| Warranty Description | Defective items and products that were shipped incorrectly are subject to a refund or replacement on a case by case basis. Please contact our customer support team for more information if you experience any issues. |

## Product Details

- **Brand:** Filterbuy
- **Material:** Polypropylene, Aluminum, Plastic
- **Product Dimensions:** 23.09"L x 20"W x 4.97"Th
- **MERV Rating:** 8.0
- **Compatible Devices:** Air Conditioner, Heat Pump, Air Cleaner, HVAC System, Furnace
- **Item Weight:** 7.5 Pounds
- **UPC:** 717267205443
- **Number of Items:** 1
- **Manufacturer:** Filterbuy
- **Product Grade:** Replacement Parts

## Images

![Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97) - Image 1](https://m.media-amazon.com/images/I/71bZpQ8ZiSL.jpg)
![Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97) - Image 2](https://m.media-amazon.com/images/I/81tpIxg4bJL.jpg)
![Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97) - Image 3](https://m.media-amazon.com/images/I/81QmLUpfj+L.jpg)
![Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97) - Image 4](https://m.media-amazon.com/images/I/71NqiPy6QSL.jpg)
![Filterbuy 21x23.5x5 Air Filter MERV 8 Dust & Allergy Defense (2-Pack) | Pleated HVAC AC Furnace Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97) - Image 5](https://m.media-amazon.com/images/I/81G62DlEyuL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Still have A/C company check out unit every 6 months!
*by  on Reviewed in the United States May 22, 2024*

I have a Tran A/C and got tired of paying the higher prices for a filter when my A/C company comes out to do 6 month checkup. Technician recommended looking on Amazon and make sure I have the correct filter for the air handler - easy for me since I bought the unit. I live in Florida and a working clean filter is important to us. I buy a two pack and have a new one ready when technician comes out. The filter is a good fit and works fine.

### ⭐⭐⭐⭐⭐ Good product. Fair price.
*by  on Reviewed in the United States January 12, 2024*

Had a bit of a problem in the ordering, which was my fault, but the company was right on it & took care of business. Was very pleased to receive my filters promptly & even more pleased to find they are a great product at a fair price. Will definitely be buying them again.

### ⭐⭐⭐⭐⭐ Edited review in attempt to comply with rules
*by  on Reviewed in the United States March 20, 2026*

Purchased these Filterbuy filters before and have been satisfied. This time 2-pack of filters was delivered in a box and prevented damage.

## Frequently Bought Together

- Filterbuy 21x23.5x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 23.09 x 4.97 Inches)
- Filterbuy 21x21.5x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Trane Perfect Fit & American Standard (Actual Size: 20.00 x 21.09 x 4.97 Inches)
- Filterbuy 17.5x27x5 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement for Trane Perfect Fit & American Standard (Actual Size: 17.13 x 26.13 x 4.97 Inches)

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---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-18*