The Delonghi 5332196000 Fully Automatic Espresso Machine O-Ring, designed with precision to ensure your espresso machine functions at its best. This O-Ring, with an inner diameter of 5.28mm and thickness of 1.78mm, is a crucial component for maintaining the optimal performance of your espresso machine. Crafted with high-quality materials, this O-Ring guarantees a perfect fit and seamless operation. Keep your machine running smoothly with this genuine Delonghi replacement part.