3" X 10" FLOOR REGISTER WITH LOUVERED DESIGN - FIXED BLADES RETURN SUPPLY AIR GRILL - WITH DAMPER & LEVER - BLACK sidewall The first number in a

The first number in a grille size represents the width

+ Product Details Size - 28"w X 28"h is the size for the duct opening measurement only

back blades made of black plastic for reduced air noise and discreet appearance

+ Product Details Size - 36"w X 6"h is the size for the duct opening measurement only

This versatile diffuser is adaptable to various airflow needs

3" X 10" FLOOR REGISTER WITH LOUVERED DESIGN - FIXED BLADES RETURN SUPPLY AIR GRILL - WITH DAMPER & LEVER - BLACK sidewall The first number in a+ Product Details Size 3"h X 10"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 4. 5" X 11. 5" wider. Installation Location Floor. Design Rigid gauge built for durability and long life in mind, but still light and handy. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed. Quality Packaging Carefully shrink wrapped with cardboard backing to prevent damage