Photo 1 of Sierra Grates 4x10 Ceiling Register – White Steel 2-Way Adjustable Air Vent Cover for Wall & Ceiling | HVAC Diffuser Grille with Dampers | Fits 10"x4" Duct Opening | Rust-Resistant Finish

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Photo 1 of Sierra Grates 4x10 Ceiling Register – White Steel 2-Way Adjustable Air Vent Cover for Wall & Ceiling | HVAC Diffuser Grille with Dampers | Fits 10"x4" Duct Opening | Rust-Resistant FinishPhoto 2 of Sierra Grates 4x10 Ceiling Register – White Steel 2-Way Adjustable Air Vent Cover for Wall & Ceiling | HVAC Diffuser Grille with Dampers | Fits 10"x4" Duct Opening | Rust-Resistant Finish