What is the Difference Between a 16x25x4 Air Filter and Other Sizes?

When it comes to air filters, there are two main sizes to consider: the nominal size and the actual size. The nominal size is the rounded measurement used to match the correct filter to your air filter slot. It is important to note that standard sizes are usually half an inch smaller than advertised. If the filter does not have the actual dimensions on the outside, you can measure it to get the correct measurements.

When you order new air filters, it is important to round the measurements to the nearest whole number. Air filters come in many shapes and sizes and are labeled differently. The length, width, and depth of a filter are printed in small numbers along the filter frame or on the cardboard edge of a Filter King brand filter. It is essential to understand that forcing an incorrectly sized filter into or out of a slot can cause damage to your air conditioning system, increase energy bills, and reduce its ability to function properly.

When buying an air filter online, it is important to know both the nominal size and actual size of the filter.

Filter King

offers hundreds of different filter sizes that can be used in various home systems, including ovens. To ensure that you get the right size air filter for your home, it is important to measure your existing filter before ordering a new one. This will help you determine the exact size of your current filter and ensure that you get a replacement that fits properly. Additionally, it is important to check the manufacturer's specifications for your particular system before ordering a new air filter. When selecting an air filter for your home, it is important to consider both the nominal size and actual size of the filter.

Knowing both measurements will help you find a replacement that fits properly and will help keep your home's air quality clean and healthy.

Jason Voisin
Jason Voisin

Unapologetic beer advocate. Passionate tv fan. Award-winning zombie enthusiast. Incurable coffeeaholic. Typical troublemaker.