NOTE: This is not the O-Ring for the Tap O-ring Red Small (Inside Evap Cap) to suit Carpigiani, Evo and Spin Slushie Machines. This part goes on the back of the Evaporator Cap that screws into the front of the silver evaporator (drum). Thickness: 1.78mm Outer Diameter: 15mm Inner Diameter: 11.11mm Model Number: 0114 Colour: Red Material: Silicon Rubber Part Numbers: IC541000418, 529422, 17000056A, 10063270, 0V3554