Key features Competition Series, Precision Shower Screen with 200 µm filtering Reinforced Structure NanoQuartz Coating Cafelat Silicone Gasket Flat Stainles Steel Screw Custom kit for Rancilio Silvia espresso machines. Fits all Rancilio and Promac models. IMS and E&B, Lab designed Competition Series, Precision shower screen with 200 µm filtering capacity. Screen is coated with the application of nanotechnology. NanoQuartz Coating enhances the non-sticky feature of this shower. The quartz coating improves the water flow, makes the cleaning process of the shower much easier and increases extraction consistency Reinforced structure is more durable and more resistant to constant pressure. Shower Screen dimensions: EXTERNAL DIAMETER: 57,5 mm; INTERNAL DIAMETER: 55,5 mm; WALL HEIGHT: 4,4 mm; CENTRAL HOLE: 6 mm. Cafelat Gasket is made of Food Grade Silicone, is odorless and tasteless. Unlike regular gaskets that are made from rubber, silicone does not smell or taste whatsoever, and are easy to change since they will not bake rock hard like rubber does. 78mm (OD) x 58mm (ID) x 8.4mm thick Stainless Steel Screw with Flat Head Free shipping included. 30-day hassle-free returns.