Door Thickness 5 cm Double valve thickness 7 cm Double valve thickness 9 cm Double valve thickness 5 cm Single valve thickness 7 cm Single valve thickness 9 cm Single valve thickness 5 cm Double shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter thickness 7 cm Single shutter Thickness 7 cm Single shutter Thickness 7 cm Single shutter thickness 7 cm