Stainless Steel. 42.5 mm diameter with a 5° cone.
Cartridge Compatibility: KNX2001 and KNX2001-E if using Cup for Plate Cartridge with diameters 50mm (KNX0127) or 80mm (KNX0135) KNX2007-X and KNX2007-E if if using Cup for Plate Cartridge with diameters 50mm
Additional Accessories: KNX2001, KNX2001-E, KNX0127, KNX0135, KNX2007-X, KNX2007-E