Where spray irrigation of trees and shrubs is wanted. This adjustable spray head is permanently mounted on a 4.5" riser stake for watering shrubs and trees. At 25 PSI, it can deliver up to 13 GPH in a full circle pattern or be dialed to any output within its range or shut off. Both volume and distance are adjustable. Sprays to a maximum of 6", depending upon water pressure. It comes with a removable transfer barb to install with 1/4" tubing.