Every home (new and old) needs ventilation to bring in fresh air, to remove stale air, and provide moisture control.

Adding fresh air to a heating or cooling system accomplishes two primary indoor air quality goals: It pressurizes a building, and increases indoor air quality by diluting polluted or stale indoor air. Adding a fresh air inlet to most systems is typically a simple and relatively inexpensive proposition.

Outside air enters the system through a roof or sidewall vent inlet that collects air from a clean outside location. The air is pulled into the system through a filter, and then a duct connected to the return plenum. Smaller systems usually use the suction side of the air handler fan to pull in the outside air. The air mixes with the return air, and then is dispersed evenly throughout the building through the supply duct system.

***IT IS IMPORTANT*** Traditionally when negative pressure is created through varies chimneys, fresh air is drawn in through various cracks and crevices (windows, doors, etc) in your home. The result is dirty, dusty, and unfiltered air pouring into your home. Using a fresh-air return system, you control the path the air takes buy offering a lower restriction intake that is filtered and clean.


This is a Fresh Air Intake Filter box for filter 10 x 10 x 1". Made in America by hand from American made Galvanized Steel Sheet Metal  housing and rails 26 Gauge Steel  . Box Dimensions is 10-1/2 x 10-1/2 x 6-1/8"  , and the collar measures 4" in length. Both collars 4" in diameter. There is a sliding door on the 10" side for filter access. The door can slide from ether side allowing for easy access. Standard air filter 10" x 10" x 1". 

Filter 10 x 10 x 1 "is included in the set.

Although it normally takes a little more time and effort on our part, our products are typically riveted together. Riveting, versus spot welding, provides a more durable bond resulting in a longer lasting rigid part that will serve you for decades. We are a complete sheet metal shop , and can handle nearly any job.  Please feel free to contact us with all your duct work needs! Our prices are fair and our quality is unmatched.

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