TriTech T750 airless spray gun is made of High-strength aluminum alloy handle that is both light-weight yet very hard – the very best of both worlds. It has an anodized protective finish and is highly corrosive resistant. The spring and valve-stem are calibrated to provide positive shut-off at maximum pressures. The shut-off spring is located outside the fluid passages for reduced friction and longer service life. All internal wetted parts are precision machined from stainless steel and tungsten carbide from maximum duty life.