---
product_id: 295339202
title: "Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75)"
brand: "filterbuy"
price: "$425.12"
currency: USD
in_stock: true
reviews_count: 5
category: "Filter Buy"
url: https://www.desertcart.us/products/295339202-filterbuy-20x30x1-air-filter-merv-11-superior-pet-and-allergy
store_origin: US
region: United States of America
---

# Long-lasting 3-Month Durability MERV 11 Superior Filtration 100% Made in USA Quality Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75)

**Brand:** filterbuy
**Price:** $425.12
**Availability:** ✅ In Stock

## Summary

> 🛡️ Breathe Better, Live Better — Don’t Let Allergens Crash Your Space!

## Quick Answers

- **What is this?** Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75) by filterbuy
- **How much does it cost?** $425.12 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/295339202-filterbuy-20x30x1-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 Withstand:** Robust beverage board frame resists humidity & temps up to 200°F.
- • **Durable Synthetic Media:** Outperforms standard cotton filters with enhanced particulate efficiency.
- • **Proudly Made in the USA:** Crafted with 100% American components for trusted quality and reliability.
- • **Advanced MERV 11 Protection:** Captures pet dander, pollen, smoke & more for cleaner, healthier air.
- • **Optimized for Pet & Allergy Defense:** Perfect for pet owners and allergy sufferers craving fresher indoor air.

## Overview

Filterbuy’s 20x30x1 MERV 11 pleated air filters deliver superior allergen and pet dander defense with electrostatic synthetic media. Designed for residential and commercial HVAC systems, these durable, American-made filters last up to 3 months while capturing fine particles like pollen, dust mites, and smoke. Engineered with a humidity-resistant beverage board frame, they maintain airflow and system efficiency, making them a must-have upgrade for healthier indoor environments.

## Description

International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Review: These are some of the best filters for cleaning the air. They are so good that they get full of dirt quickly and impede airflow much sooner than other filters that don't scrub the air as well. The challenge I had is that because they are so good you have to change them about every 2-3 weeks because air flow reduces and makes you HVAC system work harder and they get noisy. If you get these, make sure you buy more so you can change them more regularly.
Review: Work great with our dog friendly house here in Tennessee with all the pollen.

## Features

- 20x30x1 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800.
- MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog.
- LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade).
- MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components.
- HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200 F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CJZ5UC2 |
| Brand Name | FilterBuy |
| Compatible Devices | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
| Customer Reviews | 4.6 4.6 out of 5 stars (793) |
| Global Trade Identification Number | 00717267053792 |
| Included Components | Air Filters |
| Item Weight | 0.01 Ounces |
| MERV Rating | 11 |
| Manufacturer | Filterbuy |
| Material Type | Synthetic |
| Max Temperature | 200 Degrees Fahrenheit |
| Max Velocity | 615 Cubic Feet Per Minute |
| Model Number | AFB20x30x1M11pk4 |
| Number of Items | 4 |
| UPC | 717267053792 |
| Unit Count | 4.0 Count |

## Product Details

- **Brand:** FilterBuy
- **Compatible devices:** Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump
- **Global Trade Identification Number:** 00717267053792
- **Item weight:** 0.01 Ounces
- **MERV rating:** 11
- **Manufacturer:** Filterbuy
- **Material:** Synthetic
- **Max Temperature:** 200 Degrees Fahrenheit
- **Number of items:** 4
- **UPC:** 717267053792

## Images

![Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75) - Image 1](https://m.media-amazon.com/images/I/81RBfxrh-dL.jpg)
![Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75) - Image 2](https://m.media-amazon.com/images/I/81dPO7gpA7L.jpg)
![Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75) - Image 3](https://m.media-amazon.com/images/I/8174k5CMXwL.jpg)
![Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75) - Image 4](https://m.media-amazon.com/images/I/71+DkNHDRmL.jpg)
![Filterbuy 20x30x1 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.63 x 29.63 x 0.75) - Image 5](https://m.media-amazon.com/images/I/81irQZRd-nL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***V on 21 December 2024*

These are some of the best filters for cleaning the air. They are so good that they get full of dirt quickly and impede airflow much sooner than other filters that don't scrub the air as well. The challenge I had is that because they are so good you have to change them about every 2-3 weeks because air flow reduces and makes you HVAC system work harder and they get noisy. If you get these, make sure you buy more so you can change them more regularly.

### ⭐⭐⭐⭐⭐ Review
*by K***N on 21 May 2025*

Work great with our dog friendly house here in Tennessee with all the pollen.

### ⭐⭐⭐⭐ Review
*by A***R on 22 September 2024*

Works well. Only Complaint is I wish it was in a white color.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-18*