Get a bargain on the 18" x 6" Single Deflection Adjustable Grille, Parallel to Short Dimension in white (Shoemaker 902-18X6) via PlumbersStock.com. The 902 series airfoil aluminum blades are adjustable and run parallel to the shortest dimension. It provides 2-way airflow on one plane. It runs quietly because of nylon bushings that prevent metal from rattling. This grille does not come with a damper, you need to look to the 902-O series. Shoemaker is a name that heating and cooling professionals trust because of years of quality manufacturing.
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