These powerful 1" Rooftop Hurricane 150 Sprinklers are designed to be mounted on a rooftop and used with our high-pressure, high-volume FLD Pump Systems, giving you a greater coverage of 120'-150' in diameter spray. These custom, extreme duty, weighted sprinklers are built in 2" square, steel tubing (which can be filled with rock or concrete to) keep them stable, even under the high pressures created by our FLD System Pumps. Very heavy duty and designed to never accidentally slide or move, even under 120 psi of water pressure from our FLD system. These rooftop sprinklers have a high angle trajectory enabling a spray coverage of up to 110' foot in diameter, shielding your structures as well as the surrounding vegetation. These units can be connected together in series to the Hurricane stainless steel manifold available on all of our FLD Systems. 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.