When it comes to the health of your HVAC system, getting the right sized air filter is essential. If the filter isn't the right fit, it won't work properly. A filter that is too small will leave room for debris and particles to enter, while a filter that is too large won't fit in the slot. Yes, the thickness of the air filter is critical to determining the size you need.
Different HVAC systems support different thicknesses, ranging from 1 to 6 inches. A thicker one may be preferable, as it has a longer lifespan and is more efficient. However, it's essential to determine the thickness size you need for your HVAC system. You must measure the length, width and depth.
Most air filters have their size printed on the side of the frame. The length, width, and depth of the filter are measured in inches. For example, you'll say something like “16x25x1”, where 16 is the length, 25 is the width, and 1 is the depth. There are several great options for buying air filters online and having them conveniently delivered to your door. When buying an air filter, it's important to note that the air filtration industry standard is to make the filters measure slightly smaller than their slot or frame, so that they can easily slip into place without bending or breaking.
If the filter is too large, it won't fit in the filter slot, and you won't be able to replace the cover. Please note that the actual size of the air filter will be smaller than the nominal size of the air filter. If your old air filter doesn't have the measurements printed on its side, you can measure it yourself. Most online air filter retailers have a custom air filter page, and there you'll find a choice of custom sizes. For the most common brands of air conditioning systems, such as Goodman, Lennox, Trane, Rheem York, Coleman and Carrier, most standard air filter sizes work.
These are the most common types of measurements, although the exact sizes will depend on the specifications of the air filter. For example, Home Depot sells mainly Honeywell brand air filters, while ACE Hardware sells mainly Filtrete.4- to 5-inch air filters are usually better at providing a tight fit that prevents dirty air from passing through. If you live in an old house with a non-standard sized air return frame, you may want to use waterproof foam tape to slightly increase the dimensions of your favorite filter or order a custom-sized air filter. Thicker air filters also have a longer lifespan as they have a larger surface area to trap and remove contaminants from the air.
We recommend that you start your search for replacement air filters by limiting yourself to the depth of the air filter. When in doubt, you can always measure your own air filter using a ruler or any other measuring device. In conclusion, when selecting an air filter, it's important to consider its size and thickness in order to ensure that it fits properly in your HVAC system and provides maximum efficiency and protection from airborne particles.
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