With counter-rotating hollow body slats that can be adjusted together using a 15 x 15 mm square. With U-frame and flange holes on both sides. With position indicator - open/closed. Combination with additional actuator MS 8 or MS 8 P required (actuator not included in delivery). Article: RKP 56, Air direction: Ventilation, Installation location: Duct, Installation position: vertical / horizontal, Material: Sheet steel, galvanized, Weight: 11.77 kg, Weight with packaging: 12.24 kg, Flap type: electric, Duct dimensions: 1000 mm x 500 mm, Width: 1040 mm, Height: 540 mm, Depth: 120 mm, Width with packaging: 1140 mm, Height with packaging: 540 mm, Depth with packaging: 130 mm