Embodiments of showerheads having a detachable gas distribution plate are provided herein. In some embodiments, a showerhead for use in a semiconductor processing chamber may include a base having a first side and a second side; a gas distribution plate disposed proximate the second side of the base; a clamp disposed about a peripheral edge of the gas distribution plate to removably couple the gas distribution plate to the base; and a thermal gasket disposed between the base and gas distribution plate.