Replacement Bialetti Rubber Seal & Filter for Bialetti Kitty, Venus, Class, or Musa stove top coffee makers.

To checkthesize you require, measure across the diameter of the rubber seal.

Sizes Outside diameter Inside diameter
2 Cup 53mm 43mm
4 Cup 64mm51mm
6 Cup 73mm 57mm
10 Cup 86mm 70mm

Not sure what size you need?