Mixed flexible extendable elbow - 100mm - 55x110mm, GONAL
Rectangular flexible extendable elbow - 55x110mm - 500mm, GONAL
Rectangular flexible extendable elbow - 60x120mm - 500mm, GONAL
Mixed flexible straight extendable elbow - 100mm - 55x110mm, GONAL
Vertical mixed elbow 90º - 150mm - 90x180mm, GONAL.