Reduction pieces for mounting pipe fans in pipe systems. REM ...: Made of impact-resistant plastic. REM ... Ex: Made of antistatic material (metal) for use in potentially explosive areas. Article: REM 25/18 Ex, Installation location: Pipe, Material: Metal, Weight: 1 kg, Weight with packaging: 1.01 kg, Reduction to nominal width: 250 mm / 180 mm, Width: 249 mm, Height: 249 mm, Depth: 206 mm, Width with packaging: 249 mm, Height with packaging: 249 mm, Depth with packaging: 206 mm