Made of quality brass material, corrosion resistant and durable. Easy installation: only requires tubing and a submersible water pump. Cascade is a popular effect used in commercial and architectural fountains. Adjustable nozzle head, watering spraying area and direction can be adjusted according to your needs. Fountain nozzle sprays can be used in a wide variety of ways to achieve spectacular effects.It can be adapted to a wide range of ponds and fountains. Specifications: Item Type: Cascade Cedar Water Fountain Nozzle Spray Material: Brass Size : 10cm/3.9inch Optional Types: -Type 1: 1/23/4: Threaded both inside and outside, 1/2inside, 3/4outside. Package List: 1* Cascade Fountain Nozzle Spray Notice: Installation: match the draft tube with the surface of the water, the water can be spayed out to form a spectacular water column. The performance of all fountain spray heads is directly affected by the GHP pumped through the fountain nozzle head. For a higher and wider spray pattern in your pond, a higher GPH pump is required.