Wide compatibility: You get 30 pieces of different sizes of reversible airless sprayer nozzles and 30 pieces of airless filters. These 10 models are 109, 213, 311, 315, 411, 415, 517, 523, 621, 623 respectively.The filter screen is about 4.33 inches/ 11 cm, the mesh is uniform.These airless sprayer spraying machine parts can be compatible with most mainstream airless , applied in home decoration, painting and industrial fine paint decoration. Practical design:This airless sprayer nozzle has a reverse airless cleaning switch nozzle design, the can be quickly cleaned in a reversible position to prevent the nozzle from clogging, practical and effective for your work. Quality materials: The reversible airless tip is made up of 304 stainless steel handle and tungsten carbide orifice; The tip seal is made of stainless steel tip gasket and nylon. Easy installation: Easy InstallationThe airless sprayer nozzles are easy to install without extra tools.Use the paint tip to seal the nozzle into the protective base; Then insert the head into the protective base and rotate to complete the installation step, easy to operate in a few moments; For clean, just rotate the nozzle. color: Black Material: plastic+metal Package Contents: 30 x Airless paint sprayer nozzles 30 x Airless filter tubes Only 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.