Use this grille to circulate warm air between floors or adjoining rooms where no fan or vent control is needed. This black, 12" × 14" grille fits a 10" × 12" opening. It may be used on the backup side of a cast-iron louvered register installation.
WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.