A showerhead assembly that includes a showerhead housing, a distributor, and a valve layer. The showerhead housing includes a top plate, a bottom plate, and a plurality of sidewalls extending between the top plate and the bottom plate, where the top plate includes a fluid inlet configured to couple to a fluid source. The distributor includes at least one distributor outlet, and is situated in the showerhead housing. The valve layer includes at least one valve assembly, and is situated in the showerhead housing. The at least one valve assembly is coupled to the bottom plate. The at least one channel of the distributor is further configured to disperse fluid from the fluid inlet to the at least one distributor outlet, and the at least one distributor outlet is coupled to, and configured to disperse fluid to, the at least one valve assembly of the valve layer.