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Why TopTech whole house air cleaners
  • Toptech Air cleaner attaches to any forced air heating or cooling system
  • Incredible standard MERV 11* filtration rate
  • Maintain high-efficiency levels of your HVAC Equipment
  • Help protect your family and home from airborne particulates, allergens, dust, and dander
  • Cleans the air in your entire home every time your heating or cooling system is on
  • Easy filter cartridge replacement
Why TechPure Air Cleaners from Toptech
  • Specifically Sized for the correct air handlers and furnaces
  • Reflectix® R-4.2 insulated cabinet and door
  • Low pressure drop (0.181" @ 492 FPM)
  • Utilizes standard size media
  • Includes duct/equipment mounting gasket and door cleaner
  • Easy filter size identifier printed on the door label
  • Solid 22 gauge galvanized steel cabinet

The TopTech brand – represents the finest quality HVAC parts, supplies, and accessories which are consistently made at the highest levels above the competition with quality control measures and feature sets.

About TopTech

Toptech is under the Carrier Enterprise, LLC (CE) umbrella of brands which is part of the largest independent HVAC/R distribution company in the world. CE proudly distributes the Carrier, Bryant and Payne brands of HVAC equipment, as well as a full-line of aftermarket parts, supplies, and accessories, including TopTech, our own line of aftermarket parts and accessories. CE has over 110 locations throughout 20 states, Puerto Rico the Caribbean and Latin America.

Avoid this Common Mistake and Get the Correct Toptech Furnace Filter Size

The Most common mistake made when ordering filters is ordering the wrong size furnace filter. This is because the size on the filters is not necessarily the actual size of the filter. Filters are sold by nominal sizes which are rounded sizes and usually vary by brand. You can usually Find the Size of Your Air Conditioner filter right on the size of the frame of the filter. The Picture of this 12x12x1 inch air filter has the Nominal size which is the size by which air filters are generally sold. On the right of the filter, it also includes the actual size of the filter which are the true measures dimensions of the filter by length width and depth. See air filter image:

Complete List of Furnace Air Conditioner Filters by Size

If there is no size on your current AC filter, you can measure the length, width, and depth of the filter and the filter to find the Actual Size of your filter with the Corresponding Furnace Filter size in the Furnace Filter Size(Nominal Size) Chart.

Subscribe and Save on Toptech Whole House Furnace Filters: When you find the Toptech filter you need, choose our subscription option and save 5% on most filters. You will not only save money but also your time. Your filters will be delivered automatically based on the schedule you choose. If you move or go on vacation you can swap out your login make changes to your subscription. You can pause a filter subscription or swap out a product and change the frequency of your order.


Nominal Vs. Actual Sizes: Finding the Right Air Filter Size

Buying the Correct Size Air Filter- The Most Important Thing to Know 

When you are buying your air filter online most important thing to know is Air Filters have two sizes that you need to understand the Nominal size and the Actual Size. Not understanding these numbers often leads to consumers purchasing a filter that does not fit their Furnace or HVAC system.

Nominal vs Actual air filter size by Atomic

 

Understanding Nominal Filters Size Could Save You Time and Money

Not understanding the Nominal Filter Size is the primary culprit for incorrectly purchased filters.The Nominal Size is the usually the dimensions used to Label the filter. For instance 16x20x1. These dimensions are a rounded value on the filters actual measurements. The actual measurements on this filter may be 15.5x19.5x.75, but that could vary by brand and manufacturer. So in order to make sure you have the correct size filter, especially if you are replacing with a different brand it is important to confirm the actual size on the filter. When purchasing filters on the internet the Nominal size is usually found in the product title.

Actual Filter Size- The Key to Making the Right Replacement Filter Purchase

The actual size as you might have guessed are the actual dimensions of the filter by length, width and thickness. This size is often on the filter right below the Nominal size and is usually labeled as the actual size. When you are buying a filter online the actual size is sometime in the product bullet point or the product description. If your filter does not have actual dimensions on the outside of the filter, you can measure you filter to get the correct dimensions. Some brands have a foam gasket on the outside of the filter, in this case, you will want to make sure you have a compatible actual size and that it also has the foam to ensure a snug fit. 

Lennox Air Filter X0851 with Foam strips

Examples of Nominal and Actual Sizes

 Size  Example 1  Example 2
Nominal Size 20x20x1 16x20x1
Actual Size 19.5x19.5x.75 15.75x19.75x.75

 

 Furnace filters should fit securely but should not have to be forced into position. If you have to force the filter into its slot, then it is probably too big. Forcing an improper filter size in a filter can cause it to buckle, damaging the filter or reducing its ability to function properly. Filters are a smaller than their slot to allow for easy replacement. Some HVAC units may need a filter with dimensions that are unique or uncommon. In these cases, a custom filter needs to be ordered.

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