CAUTION: Please screw the orifice nozzle tight enough, otherwise it is difficult to get thick foam. Package CONTENTS: Includes 1 Foam Mold (Mesh Filter) and 1 Orifice Nozzle Tip (Foam Generator Nozzle). They assemble inside a foam cannon for foam generation. They create a thick foam to your car. FUNCTION: If the foam cannon does not work very well as before, the mesh filter has damaged and the tips of the foam cannon are blocked. You can replace them with new ones and they will return to their place. FOAM MAKER: Size: diameter 0.61 x height 0.41 stainless steel foam maker, works permanently in the foam gun; filtration accuracy: 100. Max Pressure: 3000 PSI. ORIFICE NOZZLE TIPS: Male NPT screw nozzles, about 0.28, orifice size 1.1mm. Made of brass, works long in the foam gun. Max Pressure: 3000 PSI.