[. . . ] [. . . ] working pressure: 11. 5 Bar Dual Energy: Self Fit - Additional cost to Central Heating model prices see page 117 for details N. B. DBM only suitable for chrome Toga Colour finish: Standard colours from the Zehnder colour chart: white + 25%. Colour finish and non-stock products: Delivery 20-30 working days. *1/4" air vent height excludes air vent F = flow R = return Tube: Horizontal 23mm Vertical 30x35 mm TG-180 TGC TG-120 TGC TG-070 TGC 1st January 2011 25 [. . . ] [. . . ]