How Do I Know What Size Air Filter I Need

What are the Most Common Filter Sizes?

What are the most mutual HVAC filter, furnace filter, and ac filter sizes? Standard air filter sizes typically range from i inch to six inches in depth, as far as the length and width yous tin can observe the associated air filter sizes below sorted co-ordinate to the depth. Complete list of the most mutual air filters:

1" Air Filters: 10x30x1, 12x12x1, 12x20x1, 12x24x1, 12x30x1, 14x14x1, 14x18x1, 14x20x1, 14x24x1, 14x25x1, 14x30x1, 15x20x1, 16x16x1, 16x20x1, 16x24x1, 16x25x1, 16x30x1, 18x18x1, 18x20x1, 18x24x1, 18x30x1, 20x20x1, 20x22x1, 20x23x1, 20x24x1, 20x25x1, 20x30x1, 24x24x1, 24x30x1, 25x25x1

2" Air Filters: 16x25x2, 20x20x2, 20x25x2

3" Air Filters: 16x25x3

iv" Air Filters: 16x20x4, 16x25x4, 20x20x4, 20x25x4

5" Air Filters: 16x25x5, 20x25x5

half dozen" Air Filters: 20x25x6

Become Started

Air Filter Sizes for Your Home Tin Be Frustrating

Measuring for an Air Filter Size | Standard Air Filter Size Image

Y'all've inverse your air filter before (nosotros hope), but practise yous remember what size yous used? Since you lot probably but change it every 30-90 days (or peradventure longer), you probably have to bank check the size every time it'southward time to supercede information technology.

Of grade, this sounds easy when you hear the term "standard air filter size"; yous might think that if your air filter is standard, it will be like shooting fish in a barrel to find when you get to the store. Unfortunately, that'southward not the instance – there are about 20 "standard sizes" for air filters, and none have the same measurements.

Why is getting a correctly sized air filter and then important? Because incorrectly sized (and incorrectly installed) air filters cause air seepage and decrease filter effectiveness. Even worse, incorrectly sized air filters can place undue stress on your HVAC system, dissentious it and increasing your free energy bills.

And then how exercise you lot find the right air filter?

How To Measure Air Filters? Don't forget to Measure!

Follow these 3 easy steps to accurately measure your air filter size:

ane. Measure the Length

two. Measure the Width

iii. Measure the Depth

= L x Westward x D

Sometimes, the size is written on the air filter, in which case you tin can just caput to the store or shop here and get the one that'south the same size.

If it's not, the best way to determine the size yous demand is to measure the filter that's already in there – bold it's the right size. If it has crushed corners or is aptitude, it was likely also big and you lot should go down a size.

Standard Air Filter Sizes May Vary Slightly

Air filters aren't meant to exist snug. In fact, if y'all have to force an air filter in or out, it's the wrong size, which is why standard sizes are often half an inch smaller than they're advertised. This can be confusing because if you need a xvi x 25 filter, y'all'll find it measures fifteen one/2 x 24 i/2.

But REMEMBER: Circular UP to the next WHOLE NUMBER to detect the RIGHT AIR FILTER SIZE

Take the Easy Road & Order Your Correct Air Filter Sizes With United states

OR yous could try FilterTime. We offer four filter types (iv MERV ratings, which is another blog) and approximately 50 "standard" sizes for each type, plus custom sizes – and you lot don't have to leave your house! Cull your air filter, cull a delivery schedule, and sit back and await for your filters to arrive at your door with our filter subscription service.

Contact united states of america

to learn how to get the air filters y'all need when you lot need them.