Replace the gasket/filter of your espresso machine with this replacement gasket and filter from Bialetti. Includes 3 replacement gaskets and one replacement stainless steel filter screen. Outside diameter is 2.5-Inch and fits 6-cup Moka espresso machine. Hand wash recommended for best care. Bialetti is the worlds most recognized and beloved Italian coffee company. Bialetti coffee makers have become iconic and has allowed millions of consumers to enjoy great Italian coffee that once was only available in cafes and restaurants. Bialettis passion remains in making superb coffee simple.