This set of spray nozzles has a total of 21 types of nozzles, easy to install, wear-resistant, suitable for most domestic airless spraying machines.Features:Easy to wear, practical.Easy operation, excellent atomization and anti switched from cleaning ability.Front digit represents the spray rate, the larger the number, the wider the spray pattern, followed by two representatives of the flow, the larger the number, the greater the flow.Suitable for most airless sprayer.For small to medium-sized and large residential, commercial buildings spray works, sprayable interior and exterior latex paint, oil paint.Specifications:Model: 217, 317, 417, 515, 517, 519, 521, 523, 525, 617, 619, 621, 623, 625, 627, 629, 631, 635, 643, 645, 649 (optional)Main color: yellow+silverMain material: aluminum, ironItem size: 55 * 50 * 18mm / 2.2 * 2.0 * 0.7inItem weight: 20g / 0.7ozPackage size: 125 * 85 * 40mm / 4.9 * 3.3 * 1.6inPackage weight: 40g / 1.4ozPackage list:1 * Airless Spraying Machines Tip