Profile: S-P-D Incorporated is a provider of fire protection and water system products. Our product line includes residential pump systems, jockey pump controllers, automatic transfer switches, fire suppression system, pressurized steel tanks and bolted steel tanks, fiber glass tanks, motors, starters, valves & control systems. Our brands include The Guardian™. Our residential fire sprinkler pump system is a assembled, self-contained and easy to install residential fire pump system.