Group Head Tune Up Kit for E61 Espresso Machines. Includes IMS Competition Integrated Membrane Shower Screen with 200 µm filtering capacity. Screen BODY DIAMETER: 56,5 mm. BORDER DIAMETER: 60 mm. WALL HEIGHT: 17 mm external. INTEGRATED MEMBRANE. The membrane is created directly within the body of the shower disc, which is fixed to the body of the shower by caulking. SUPPORT DISC PERFORATION. PERFORATIONS: Ø 3 mm, 98 holes. Cafelat Silicone Gasket: 73mm x 57mm x 8.5mm (Blue color). Compatible with E61 Espresso Machines: Ascaso, Bezzera, E61 standard, Faema, Iberital, Kees Van Der Westen, Rocket, Wega and many others.