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18x25x1 – Merv 11

18x25x1 – Merv 11
AC Furnace Air Filter
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2 $0.00
3 $0.00
4-5 $0.00
6-11 $0.00
12+ $0.00

Product Description

Filter Size: 18x25x1

Actual Size: 17.75×24.75×1

Actual Size Fraction : 17-3/4×24-3/4×1

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Order 18x25x1 Air Filters Online

The air quality outside your home or office keeps changing with the pollution and weather outside. Most areas are exposed to allergens and irritants during the peak seasons and air pollution around your building.

Custom Filters Direct 18x25x1 air filters are the best solution to clean incoming airflow and maintain the healthy indoor air quality in your home or business. Our air filters are easy to install and block more than 90% of the airborne particles and other dust particles.

All of our 18x25x1 air filters are manufactured in the USA with HVAC industry standards in mind, so you will get the quality filters that meet your expectations and provide a great value.

Our air filters are designed with charged synthetic media to offer a great dust-holding capacity while promoting superior indoor air quality in your home or business. We also use strong frame material that stands up to high pressure and severe system conditions.

Though our air filters are designed to last longer, consider replacing the filters every 2 to 3 months for optimal performance and efficiency.

Select the Right MERV Rating


For most homeowners, MERV 8 air filters will do an excellent job at a pocket-friendly price. They eliminate 85% of the airborne particles ranging in size from 3 to 10 microns.


These air filters catch more than 85% of harmful pollutants ranging in size from 3.0-10.0 microns and even also capture 50% of particles 1.0-3.0 microns in size.


These AC and furnace air filters are the most restrictive and trap even the smallest particles like bacteria, tobacco smoke, and burning wood. MERV 13 filters are an ideal choice for areas where superior air filtration is required. These filters capture more than 90% of particles 3.0-10.0 microns in size and 75% of particles 0.3-1.0 microns in size

18x25x1 Air Filters Delivery

Custom Filters Direct makes shopping 18x25x1 furnace and HVAC filters easy and convenient. We offer two different delivery options to suit the needs of customers. You can choose our auto-delivery to get a pack of new air filters delivered to your doors at a regular interval. We also offer a one-time delivery option that will help you to save your home from almost particles all year long. So, choose the delivery option that suits your needs, and place your order now!