CODE DIA.(mm) WALL
GV-WC-300 300 0.8
GV-WC-350 350 0.8
GV-WC-400 400 0.8
GV-WC-450 450 1.0
GV-WC-500 500 1.0
GV-WC-550 550 1.0
GV-WC-600 600 1.0
GV-WC-650 650 1.0
GV-WC-700 700 1.0
GV-WC-750 750 1.0
Note: All our ducting is manufactured standard with a double flare on the one side and single flare on the other, or two single flares with Tension Ring if required.