Rocket Espresso Copper Gasket C479900228 – ¼-Inch Seal Washer

Keep every joint in your espresso machine drip-free with this original Rocket Espresso copper gasket, part C479900228. Precision-machined for ¼-inch connections, the annealed copper washer compresses to fill microscopic surface imperfections, guaranteeing a gas-tight, steam-tight seal even under boiler temperatures and pump pressure. Copper’s natural work-hardening resists vibration loosening and outlasts fibre or PTFE alternatives, making it the smart choice for annual servicing or quick line repairs. Stock a few in your tool kit and enjoy rock-steady pressure, spotless internals and consistent flavour extraction.

Key Features & Benefits

• Annealed copper construction — superior thermal conductivity and corrosion resistance
• Crush-form sealing — conforms perfectly to mating faces for leak-free performance
• ¼-inch inner diameter — OEM fit on Rocket brew, steam and water lines
• Reusable after re-annealing — economical option for multiple service cycles
• Small part, big protection — preserves pump pressure and prevents scale creep at threaded joints