If you received a foam cannon from us, it might have come with 2 orifice sizes. There is one preinstalled and another in a small clear bag inside the foam cannon box. The writing on that bag denotes which orifice is in the bag. If the bag states 1.1, then the 1.25 orifice is installed in the cannon. If 1.25 is on the bag, then 1.1 is installed in the foam cannon.