1.If the foam cannon does not work as well as before, it may that the filter is worn out and the foam cannon is blocked. You can replace them with new ones and it will be restored.2. They are high replacement parts for foam cannon and generate thick foam suds that stick to your car.3. Universal replacement orifice nozzle tips fit most foam cannon. Foam tips are easy to use and replace. It can work for a long time.Foam Cannon Orifice:Orifice Size 1.1 mmNPT male screw nozzlesOrifice nozzle fitting is 0.28 inchThe maximum working pressure: 3000 PSIFoam Maker :Diameter 0.61 x Height 0.41 inchFiltration accuracy: 100The maximum working pressure: 3000 PSITipsAttention: Please make sure screw in the orifice nozzle tighten enough, or it is hard to get thick foam.Colour:SilverMaterial:Stainless steelPackage Contents:2 x foam cannon orifice tips2 x foam cannon filtersOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.