The Reggio Register 3232G 30-in Extra Large Grille Register
By The Reggio Register Company
For use with wall and floor heating vents or cold air returns, this cast iron Reggio Register® grille is designed to fit a 30" x 30" opening.
Note: When choosing a grille, measure the dimensions of the opening you wish to cover. Then, order a grille with inside dimensions that correspond to those measurements.