Fitment: 246-428 Airless Paint Spray Pump for 390, 395, 490, 495, 595 Sprayers. Notice: 246-428 Airless Paint Spray Pump Only fit for older version which is produced before 2019. Only fit for the standard models, not for ST or PC Pro sprayers. Be sure to check the part number before purchasing in case wasting your time by buying the wrong model Tips: Make sure to shake the 246428 airless paint spray pump thoroughly before installing it to that the steel ball is separated from the alloy wall plate.This 246428 paint spray pump is already assembled and all parts are included inside the pump, easy to install, fully saving you time! Features: This 246 428 Airless Sprayer Pumps are made of higher quality alloy and undergoes a professional high-precision forging process, making the paint spray pump more sturdy and wear-resistant, with a longer service life. Slight differences between the actual objects do not affect use. Colour:Photo Color Material:Metal Package Contents: 1 x Airless Spray Pump 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.