Wide Compatibility: Designed replacement for airless sprayers including models 390. Construction: Built with heat- materials and reinforced Material to prevent deformation under high-pressure or extreme conditions, extending the lifespan of your sprayers. Easy Installation: Plug-and-play design requires no calibration or tools. Ideal for quick maintenance and replacement of worn or faulty regulator valves. Industrial Performance: Optimized for professional use in continuous operation environments. Maintains machine efficiency and reduces downtime for 390 series and compatible units Please note: Actual product slightly in color or appearance, but this does not affect functionality. We appreciate your understanding! Color: As Shown Material: Metal Package Contents: 1set x Pressure Regulator Valve 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.