Includes one washer to prevent any annoying leaks. Rub Clean Technology: Easily remove limescale and mineral build-up by rubbing the nozzles. Versatile Water Jets: Various size water jets provide an invigorating shower experience. High-Quality Material: Made from durable, corrosion-resistant stainless steel. Standard Attachment: BSP 1/2 inch attachment ensures compatibility with most shower arms. Easy Installation: Quick and hassle-free installation without the need for professional assistance., Manufacturer: Aqualona