Hvac filter 20x22x1?

In addition to the health benefits, this HVAC air filter also protects your heating and cooling system by making it work more efficiently and can reduce expensive repair bills. Keep in mind that the “real” filter size, that is, the size shown by the measuring tape, should be used when creating a filter with this tool, not a nominal filter size. A dirty filter restricts air flow to the system's air controller, making it work harder to cool or heat the house. This air filter is especially effective in eliminating particles in the air that cause allergies and sinus irritation.

Discount Filters offers many different types of air filters at a discount to help you breathe better the air inside your home based on your specific needs. If you have pets, children, or people with allergies in your home or business, replace filters more frequently to maintain superior indoor air quality and reduce your energy costs.