10" X 4" FLOOR REGISTER WITH LOUVERED DESIGN - FIXED BLADES RETURN SUPPLY AIR GRILL - WITH DAMPER & LEVER - BROWN Black if your hole is 20"

if your hole is 20" wide by 14" tall

1-1/8" - 2334 PSI

+ Product Details Size – 10" X 4" is the size for the duct opening (floor/vent hole) measurement only

If your hole is 14" wide by 20" tall

10" X 4" FLOOR REGISTER WITH LOUVERED DESIGN - FIXED BLADES RETURN SUPPLY AIR GRILL - WITH DAMPER & LEVER - BROWN Black if your hole is 20"+ Product Details Size 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 5" X 11. 5" wider. Installation Location Floor. 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 in shipment. + Product Description Introducing the Louver Floor Register from HVAC