Three-in-One Espresso Tune-Up Kit for Home Machines ✔️ NanoQuartz coated 200 µm shower screen, Cafelat gasket, flat screw This three-in-one tune-up kit is designed for home espresso machines and fits all Rancilio Silvia and Promac models. ✅ Shower screen features 200 µm filtering with NanoQuartz coating for smooth water flow and easier cleaning ✅ Reinforced structure for durability under constant pressure ✅ Shower screen dimensions: external diameter 57.5 mm; internal diameter 55.5 mm; wall height 4.4 mm; central hole 6 mm ✅ Gasket: Cafelat silicone, food-grade, odorless and tasteless; 78 mm OD x 58 mm ID x 8.4 mm thick ✅ Flat-head stainless steel screw, green color, included for installation 💡 What is a shower screen kit used for in home espresso machines and why upgrade to NanoQuartz coated options? Here's a quick, handy answer. - Improves water flow and extraction consistency through precise 200 µm filtering - NanoQuartz coating reduces residue buildup and eases cleaning - Designed to fit Rancilio Silvia and Promac models for a secure seal - Includes silicone gasket and flat-head stainless screw for quick swap