Rancilio Silvia Copper Washer – 11x7x1mm (Genuine OEM) Keep your Rancilio Silvia espresso machine running smoothly with the Genuine Rancilio Copper Washer (11x7x1mm) 🔧. Designed to fit precisely between the boiler and the OPV (Over Pressure Valve), this small but essential component ensures a proper seal for consistent pressure and optimal espresso extraction ☕🔥. Manufactured to Rancilio's exact specifications (Part #36240007), this OEM copper washer offers excellent heat resistance and long-term durability—perfect for routine maintenance or DIY repairs. 🛠️ ✅ Product Highlights: 🧲 Authentic Rancilio Part – OEM #36240007 📏 Size: 11mm outer diameter x 7mm inner diameter x 1mm thick 🔧 Fits Between Boiler and Expansion Valve (OPV) on Rancilio Silvia 🔥 Heat-resistant copper construction ensures leak-free performance ⚙️ Compatible with all Rancilio Silvia models 🔁 Maintenance Tip: Rancilio recommends using one 11x7x1mm and one 11x7x1.5mm washer per unit. Since individual machine fit can vary, we suggest keeping two of each size on hand. They're affordable essentials for Silvia owners! 🧰💡