La Pavoni O-Ring Steam Valve for Lever line. Fits: Models with the rotating steam wand, which is called the "Bayonet Style" wand. You will Need 2 (two) per shaft, so our cart will automatically add TWO to your cart. Please do not change the quantity (unless you really want only one) or you will end up with only one. This O-Ring is also located in Position 13 on the drawing, the frother (cappuccinatore), which also uses two.