Our 3 Inch Furnace Filters Are Cheaper Than Amazon!

United Filter has the lowest prices on 3 inch furnace filters anywhere! 

Our customers have found that the prices on our 3 inch furnace filters are routinely lower than prices for the exact same furnace filters on Amazon. 

When you buy directly from us, you'll save a markup up to 50% on Amazon prices. 

We manufacture our durable 3 inch filters to the same specifications as top-tier national brands, but at a lower price. 

If you want the most effective 3 inch furnace filters at prices lower than anywhere else, shop here now.

High-Quality 3 Inch Furnace Filters For Homes & Businesses

In homes and businesses containing allergy or asthma victims, a 3 inch furnace filter that fits correctly is critical. 

These furnace filters trap common allergens and irritants, such as pollen, dust mites, mold spores, and dander from pets. 

This works to purify the air in your home or business and helps reduce respiratory symptoms. 

In short, a good investment in a 3 inch air filter is one of the easiest and most inexpensive ways to ensure that your family or employees breathe healthy, clean air.

We Have Many Sizes of Furnace Filters For Any System

Alongside a broad selection of 3 inch filters, United Filter offers an entire line of furnace filter sizes designed to meet the needs of any HVAC system. 

From 1 inch to 2 inches and larger, we have a high-filtration replacement for your existing filter that will keep the system up and running great regardless of the original filter size. 

Check out our full line of 3 inch, 1 inch or 2 inch furnace filters for your home or business.

Superior Airflow From Our 3-Inch Filters

The 3 inch furnace filters we design work great for airflow and filtration, but also ship as a fully assembled cartridge. A rigid frame keeps the system locked in place and airtight, meaning it won't sag under your HVAC pressure. Plus, the pleated media captures 17 times more particles than flat panel filters and offers your furnace and home more excellent protection.

Three-inch furnace filters are all about quality and value. United Filter provides top-notch filters with better components and filtration media. This means our furnace filters last longer compared to those other brands. Rest assured, our 3 inch air filters will serve you consistently and durably to keep your HVAC system working at peak operation.

Browse our entire selection of 3 inch furnace filters now and experience breathable air, a reduction in energy bills, and the confidence that your HVAC unit is working as it should be functioning. 

Our three-inch replacement options include various efficiency ratings, filter media types and the lowest prices. You can easily find the right 3 inch furnace filter for your home or business. If you're unsure what size may fit your system best or have any other inquiries, contact us!