Baseboard Register 15″ X 12″ – Old Style Register – White – New
These hard to find baseboard vent covers have. 15″ wide x 12″ high for a 10″ x 8″ duct. 2 1/4″ deep at the base and 1″ deep at top. REG1513 – 15″ X 13″. REG1312 – 13″ X 12″. They use louvers to direct the air instead of the big noisy flap of yesteryear.