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Home > Knowledge > Content
How do I know what size filter I need Dec 17, 2018

Filter sizes can look a bit intimidating, especially when great deal of homes have multiple filters of different sizes. SAF Home series are here to make filter buying EASY. Once you enter your filter size with us just once, not only will you not have to remember when it's time to chage them, but you will no longer need to remember thoses trickey size.

In order to find the size of pleated filter(s) used in your home, you need to look no further than your existing filters. On the ourter frame. You will see at least one set of numbers. If you see two sets of numbers, the filter size needed to order replacements is the mominal size, not the actural size. You can ignore the actural size printed on your filter for this task. as the nominal size is the number set needed to order new filters


Your filter size (again, referencing the nominal size for your filter here will liik something like this: 20"x 20"x1" or 20"x 25"x1 or 14"x 20"x 2"


 The size of your pleated air filter is always presented in a string of three number, with the first number representing the length, the second number representing the width, and the last number representing the thickness.


If you're still not sure what size filter(s) your home needs, fell free to reach out to us.


Nominal size, not the actual size reference next page: