The Perrin & Rowe piston for worm gear to U.5383,U.5542 and U.5543 diverter secondary spindle, raw brass with no finish (use with primary 9.21384) is made from premium materials, this item offers great function and value for your home. This fixture is part of Rohl's decorative collection, so make sure to check out other styles of fixtures to accessorize your room. Solid brass construction Raw brass with no finish Piston for worm gear to U.5383,U.5542 and U.5543 diverter secondary spindle