Rieber Insert Adaptor/Holder Varithek Module V-AST-200OFThe Rieber V AST 200OF sturdy support frame is designed for all GN 1 1 Varithek modules, and can be inserted in serving systems such as the Varithek acs (specifically for models 1100 d3, 1500 d3, 1600 O3) as well as in recessed installation niches or as a single solution on any standard worktop. Optimally balanced spacing between the rails in the GN system used up to a depth of 150mm.