In order to keep your AC functioning in a good way, you may need to replace your air filter on a regular basis. It can be one of the most common oversights. As out ofsight often means out of mind. Especially those times when you do not require the AC to function daily. You must change the filters before using the Air Conditioner.

Choosing the Right Size Air Filter for your n might be a bit difficult and tricky for some of you. You can check the numbers printed on the existing air filter or measure the filter yourself. Besides, you can also get help from professionals. So, to help you in this regard, here we have a few tips for selecting the right size air filter for your equipment.

5 Tips forChoosing the Right Size for your AC Air filters

Check the numbers printed on your existing AC filter: The easiest and simplest way to ensure that you have chosen the perfect size for your AC Air filter is to look for the numbers that are printed on your existing AC filter.

You can examine the frame by removing the existing AC filter from its slot. You can find the filter size printed along the edge of the frame. The nominal size differs from its actual size. This nominal size is listed in bold on the frame too. You can find the actual dimensions of the filter in fine print on the frame. If you can’t find that, you must measure the filter just to ensure the exact size.

Measure your AC filter: Unfortunately, some AC filters don’t represent the exact measurements. Besides, you may also be moving into a new home and dealing with a new AC filter with which you are not familiar.

And maybe, the AC filter’s size is not labeled on the frame at all. You can always measure the size of your AC Air filter if you are not sure about the size. In that case, you can measure the existing filter and find out the dimensions of height, width, and depth with the help of a ruler or any other measuring device.

Measure the air intake of your AC filter: Another way of choosing the right size filter for your AC is to measure the air intake. You can measure the interior dimensions of the air filter intake. You must ensure that you have purchased the perfect air filter for your AC.

Check your AC owner’s manual: If everything else fails, you can go through your air conditioning system product manual to find out the exact size of your AC filter. Or you can contact the manufacturer of the AC filter directly with the help of your system model number. They will help you figure out the exact filter specification information for the unit.

Customize your AC filter: Another way of choosing the right size air filter for your AC can be getting help from a Customizing AC filtration facility. You can contact a residential air filter supplier who will help you find the perfect size for your AC filter among the different AC filter sizes available.

You can custom ac filters according to your requirement. All you need to do is contact an AC filtration facility, and they will handle the rest. They will not only suggest the perfect size for your AC filter but also ensure that you purchase the perfect type.


With these tips, you can easily choose the right size Air Filter for your AC. It is very important to purchase an air filter that fits perfectly. If you get the wrong filter, you will end up getting into some unnecessary hustles. To keep your air cooling system running smoothly, you must choose the right filter size. We recommend using Custom Filters Direct to buy custom size ait filters online.