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What you need to know about your  Air Filter

  • Actual Filter Size Vs Nominal Filter Size - (Why this is so important)
  • Filter MERV Ratings - (What is the difference and how does it apply to you?)                              
  • Filter Quality Standards - (Know how to spot a cheap inefficient product)
  • What is your filters model number - (They sure made this a confusing topic but we made it simple) 

Filter Dimensions

It works like this

The Filter System comes in various sizes that are described in two ways.

  • Nominal Filter Dimensions - This is equal to the actual dimensions rounded up or sometimes down
  • Actual Filter Dimensions - These are the actual filter dimensions if you were to use a measuring tape and manually measure the filter.

Example:

Filter Sizes

Air Filter |

Why is double checking your filters actual dimensions so important?

Because people accidentally order the wrong Filter Size all the time and it is not their fault.

Air filter manufacturers did not make cross referencing filter sizes easy and when the wrong size is ordered, the filter will not fit in your Filter Housing, or  Filter Box.


Furnace Filter Depot Online Store

Welcome to Furnace Filter Depot's online store.

Furnace Filter Depot in Orlando, Florida, offers the best in furnace filters and HVAC filters to improve your home's air quality. We offer a wide selection of air filters for furnaces, heating systems, and air-conditioning systems of every variety. We have been distributing air filters for HVAC systems across the country since 1974.

Please feel free to contact us if you have questions about our products, or if you are looking for something specific. Call us today at (786) 310-4863 or email us at info@furnacefilterdepot.com