Upgrade your home’s air quality with this open box Filtrete 24x24x1 MPR 1000 MERV 11 AC furnace air filter 2-pack, designed for superior allergen defense and reliable performance in your furnace, air conditioner, or HVAC system. These Filtrete air filters are ideal for homeowners who want cleaner, fresher indoor air without compromising airflow or system efficiency.

This listing is for an open box 2-pack of genuine Filtrete 24x24x1 air filters. The filters are in like-new condition; only the outer retail packaging has been opened or shows minor handling wear. The filters themselves have not been used or installed.

Filtrete’s exclusive 3-in-1 technology from 3M is engineered to pull in and trap unwanted particles while allowing cleaner air to flow through. With an MPR 1000 rating and MERV 11 performance, these filters provide a strong balance of filtration efficiency and airflow for residential systems. The exact dimensions are approximately 23.81 x 23.81 x 0.81 inches, designed to fit systems that accept a nominal 24 x 24 x 1 filter size.

Key benefits of these Filtrete 24x24x1 MPR 1000 MERV 11 AC furnace air filters include their ability to attract and capture common household contaminants. They help reduce particles such as lint, dust, pollen, pet dander, smoke, and smog from the air passing through your HVAC system. This makes them a great choice for families with allergy sufferers, pets, or anyone sensitive to airborne irritants.

These 3-month pleated 1-inch home air filters are designed to outperform standard fiberglass, washable, and non-electrostatic filters. The high-quality pleated media offers more surface area for particle capture, resulting in better filtration and longer life compared to basic flat filters. For optimal performance, it is recommended to change your Filtrete furnace filter at least every 90 days, or more often if you have pets, smoke indoors, or run your system heavily.

The Filtrete 24x24x1 air filter is versatile and easy to use. It works in most home furnaces, central air conditioning systems, and HVAC units that require a 24x24x1 filter. Simply remove your old filter, check the airflow arrow on the frame, and insert the new Filtrete filter with the arrow pointing toward the furnace or air handler. Regular replacement helps maintain system efficiency and supports cleaner indoor air.

You can also pair these filters with the Filtrete Smart App, available for iOS and Android, to set convenient reminders to change your air filter every 30, 60, or 90 days. This helps ensure you never miss a replacement and keeps your system running at its best.

Features and details:

- Brand: Filtrete by 3M
- Product type: AC furnace air filter for HVAC systems
- Size: Nominal 24 x 24 x 1 inch
- Exact dimensions: approximately 23.81 x 23.81 x 0.81 inch
- Pack quantity: 2 filters per pack
- Condition: Open box, filters unused
- MPR rating: 1000
- MERV rating: 11
- Filter style: 3-month pleated 1-inch home air filter
- Application: Furnace, air conditioner, and HVAC system
- Technology: Filtrete exclusive 3-in-1 technology to trap particles while allowing cleaner air to flow
- Helps capture: Lint, pollen, dust, pet dander, smoke, smog, and other airborne particles
- Outperforms: Standard fiberglass, washable, and non-electrostatic 1-inch filters
- Recommended replacement: At least every 90 days under typical conditions

Benefits:

- Helps create a cleaner, fresher home environment
- Supports better indoor air quality for allergy and asthma sufferers
- Protects and maintains your HVAC system by keeping dust and debris off internal components
- Easy installation and replacement with standard 24x24x1 size
- Reliable Filtrete brand performance backed by 3M’s filtration expertise

This open box Filtrete 24x24x1 MPR 1000 MERV 11 AC furnace air filter 2-pack offers excellent value for homeowners looking to improve indoor air while maintaining efficient system performance. If your current filter size is 24 x 24 x 1, this Filtrete allergen defense filter is a smart upgrade from basic fiberglass options, providing better filtration, durability, and comfort throughout your home.

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