These Low Pressure, 1/2" Side Mount Offset Hurricane 80 Sprinklers are designed for municipal water type connections, such as a garden hose. They operate at 40-120 psi of water pressure and have a 50'-70' max spray diameter. These bolt-on, billet aluminum, Quick Release, Offset Side Mounts allow you to mount our Hurricane 80 fire sprinklers with a slight offset from posts or structures. The option of an adjustable sprinkler head adds the flexibility to allow you to direct the outgoing stream of water in a limited spray pattern, under use conditions when a full 360º radial spread isn't optimal, such as when mounted up against structures or property lines.