Active installation systems for wall-hung WCs Active WC Installation system for wall-hung WC. With dual flush mechanism 6/3 and 4,5/3 litres and installation accessories. Draining elbow Ø 90/110 Ref: A89011001B *Compatible only with operating plates 52-B, 62-B and B01 Active SET WC Installation system for wall-hung WC. With a cistern with a dual flush mechanism 6/3 and 4,5/3 litres and installation accessories. Draining elbow Ø 90/90 Ref: A89011010B *Compatible only with operating plates 52-B, 62-B and B01 8