18″ X 12″ Duct Opening | Steel Return Air Grille for Sidewall and Ceiling | Outer Dimensions: 19.75″W X 13.75″H

18″ X 12″ Steel Return Air Grille | HVAC Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 19.75″W X 13.75″H for 18×12 Duct Opening

Return Air Grille for 18″x12″ Duct Opening, White, Steel

1/2″spaced fins set at 40 degrees.
Primary use: Side wall and ceiling.
Screws are included with the system, standard.
All-steel construction.
Durable white powder coated.
Standard color is white (Ral9016).

How To Measure A Grille
Always measure the size of the duct opening (the “hole” in the duct/wall). Do not measure the entire size of the register itself. Size of the grille is; listed size +1.75-inch.

Understanding Width & Height
In a grille size, the first number always represents the width and the second one is the height. As an Example: If the hole on your wall/duct is 18″ wide by 12″ tall, order 18×12 option. If the hole is 12″ wide by 18″ tall, order 12×18 option.

For this particular product you’re viewing at the moment, the hole on your wall/duct opening should be 18″Wx12″H.

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