10x4 Matte Black Aluminum Floor Register - Modern Design (Duct Opening) Steel The neck size and face

The neck size and face size are different from the duct opening

Solid alloy aluminum frame — rust-proof

The washable mesh pre-filter included with this grille is a first-line capture layer that traps large dust particles

ensure adequate ventilation clearance from the shower spray zone

more durable feel than many stamped steel or plastic alternatives

10x4 Matte Black Aluminum Floor Register - Modern Design (Duct Opening) Steel The neck size and faceCHECK SIZE BEFORE PURCHASE: This 4x10 aluminum floor register fits a 4" 10" floor duct opening the hole in your floor, not your old register face. See the full sizing guide Drop in floor replacement for any 4" 10" floor duct opening no remodeling, no contractor required. Modern aluminum design with a flush, low profile face that sits level with most floor surfaces. Solid extruded aluminum rust proof, wont dent like stamped steel, zero plastic