Spray head

A spray or shower head 100 comprising a spray plate 104 and a moveable element 102 behind the spray plate, wherein the moveable element is arranged to move to and from a position blocking fluid flow through the spray head in response to fluid pressure. The moveable element may be biased to block fluid flow through the spray head, and may move to unblock fluid flow when fluid pressure increases from a low to high value. The moveable element may be flexible e.g. a diaphragm 102, biased to block fluid flow, and having ribs, pins or protrusions (Fig. 6, 600) arranged to align with and block the spray holes 110 of the spray plate. The moveable element may also be a valve member (Fig. 10, 802), biased to engage a valve seat (Fig. 10, 818) to block fluid flow through the spray head. The spray plate 104 can have drain holes (Fig. 10, 810) to allow residual fluid to escape.