TruAire 121SW48 48 in. Steel Baseboard Diffuser SupplyThe 121SW-48 is a 48 in. baseboard supply air diffuser used for baseboard openings. This diffuser supplies conditioned air to your home and offers a subtle baseboard design. 1 simple pull of the latch and the single damper will close quietly and smoothly. Our product is constructed to ensure maximum airflow and compliment your home decor. Using our product to outfit your ventilation system will improve your home air circulation.Allows air to flow freely between your ventilation system and a roomHigh quality steel componentsWhite powder coat finishMade from high quality steelDimensionsOutside Length (in.)48.0 inOutside Width (in.)2.5 inDetailsAir deflection3-wayColorWhiteColor FamilyWhitesFeaturesLouveredInstallation LocationBaseboardMaterialSteelMaximum Duct Opening Length (in.)45 inMaximum Duct Opening Width (in.)22 inPack Size1Product Weight (lb.)6.2 lbShapeTrapezoidAdditional ResourcesFrom the ManufacturerWarrantyInstallation GuideUse and Care ManualInstructions / Assembly