This electric paint pump is compatible with for ProXChange ProX17 ProX19 ProX21 sprayers. The model number of this power paint pump is 24Y742, please confirm whether it is the model you need before purchasing. This power pump is made of cold-rolled steel. Its advantage is that it is more and - than ordinary steel and has a longer service life. You can buy it with confidence. This pump has a built-in piston gasket with a lubrication function and can be used normally without the use of lubricating oil. Our products are manufactured strictly in accordance with high standards and high craftsmanship, which is the for replacement accessories. This pump is used to houses, walls, metal, wood, etc. It sprays objects evenly and effectively, minimizing paint waste and saving money. Colour:As Shown Material:Metal Package Contents: 1set * power paint & hvlp sprayers 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.