8" X 18" Duct Opening | HD Steel Return Air Grille for Sidewall and Ceiling

8" X 18" [Duct Opening Measurements] Heavy Duty Steel Return Air Grille | HVAC Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 9.75"W X 19.75"H for 8x18 Duct Opening

Return Air Grille for 8"x18" Duct Opening, White, Heavy Duty 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 8" wide by 18" tall, please order 8"x18". If the hole is 18" wide by 8" tall, please order 18"x8".
For this particular product you're viewing at the moment, the hole on your wall/duct opening should be 8"W X 18"H.

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