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About Us

We Offer Discounted Filters Fast. Atomic Filters carries brand name air and water filters and aftermarket replacement filters at exceptional values.

Atomic - Your Filter Found and Delivered 

Air and Water Filters, we need them for our homes and business and we have to replace them on a regular basis. As an allergy sufferer, I understand the value of clean air and I know the filter is only part of the equation. You have to keep your home clean and free from allergens.

And as an avid water drinker, there is nothing better than a nice cool glass of clean filtered water.

Clean Filtered Water at a reasonable price by Atomic Filters
These are the simple things you and I want, clean air clean water. We don't want to spend our weekends running around trying to find the right filter.

We even offer you the ability to subscribe to a recurring order for your filter so that the right filter comes to you automatically when you need it.

At Atomic, we want to make this simple and affordable you.


Armstrong Air Filters    Carrier Air Filters

Featuring Major Brands of air filters such as Honeywell, Bryant, Carrier and Armstrong Air.

 Honeywell Air Filters      Bryant Heating and Cooling Systems Filters

Atomic filters has popular brands of Water Filters from Whirlpool, Maytag, and LG.

 Whirlpool refrigerator Filters        LG refrigerator replacment filters        Maytag refrigerator filters

Atomic brand filters are made from Quality materials in The USA. Made in the USA

Atomic Filters

 What our customers are saying

🌟 🌟 🌟 🌟 🌟 5 star review from Patrick Samples: A great place to buy filters!

I not only saved money on my filter but received prompt shipment, arriving just a few days later.

🌟 🌟 🌟 🌟 🌟 5 star review from Scott Hesler: In Stock-Fast Ship-Good Price

Atomic Filters had this filter in stock and a good price.
The other competitors were out of stock and slow with communication

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 are 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 the 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 size and that it also has the foam to insure a snag 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.