(2) pieces Registers: Control, Lock and SAVE on energy bills with our Exclusive Precision Airflow Regulator and Locking Mechanism. Infinitely adjustable louver assembly (damper box) let's you control every room's airflow while saving you money. Exclusive locking mechanism keeps vents in place, allowing you peace of mind. Made of rustproof cast aluminum and treated with a baked-on powder coating for a luxurious black finish, each register is adorned with a Renovator's Supply logo. For ceiling and wall mounting options, screw holes can easily be drilled on-site for your specific application - mounting hardware not included. Measures overall 9 1/2 in. x 11 3/8 in.
