Instructions / Assembly

Every cooling and heating system supplies air into the rooms using ducts and these

duct openings are covered by supply grilles. To maintain the same pressure all

over the house, return air ducts are used that recirculate the air or vent it outside.

The return air openings are covered by grilles that are called return air grilles.

Return air filter grilles allow a filter to be mounted inside them to trap particles

and germs thus cleaning the air. The filters often have MERV rating depending on

their ability to trap the particles and germs. The filters need to be replaced

regularly to ensure flow of clean air. Also, when filters get dirty, it can affect the

efficiency of the heating or cooling system.

How to Install a Return Air Filter Grille

For replacement of filter grille (existing installation)

Step 1 – Sizing the return air filter grille.

The size of the hole is likely to be the same as the size of filters in the filter grille

that you plan to replace.

Alternatively or for new installation, measure the size of the hole in the wall or

ceiling to figure out the filter grille size. The back of the filter grille frame slides

into the hole; therefore, the size of hole needs to be approximately the same size

as the filter grille.

For example, in an approximately 16 inch x 25 inch hole size, the size of the

required filter grille is 16 inch x 25 inch. All Venti Air filter grilles are described as

width (W) x height (H). Therefore, a 16 x 25 filter grille is 16 inches wide and 25

inches high. In Venti filter grilles, the opening and closing latch is always on the

width side. This allows you to open them from the top when installed on the

sidewall.

Step 2 – The filter grille consists of two parts: frame and grille (face). On the wide

side, the grille has latches on the top and take apart hinges at the bottom. Please

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Every cooling and heating system supplies air into the rooms using ducts and these duct openings are covered by supply grilles. To maintain the same pressure all over the house, return air ducts are used that recirculate the air or vent it outside. The return air openings are covered by grilles that are called return air grilles. Return air filter grilles allow a filter to be mounted inside them to trap particles and germs thus cleaning the air.
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see the pictures below. Only the frame needs to be installed after removing the grille as they come packaged together. If it is a replacement, then after removing the grille, remove the old frame by removing the screws. Slide in the new frame and hold it in place using the builtin tabs. Secure it with screws. Lastly, you can attach the grille (face) to the frame and you are done. On attachment, the latches will go on the top and take apart hinges at the bottom.