The Laing 3-Bend D1 Heater with Flow Switch is a specialized low-flow spa heater designed for use in Dimension One Spas (D1). With a unique triple-bend shape, it optimizes both water flow and heat transfer, while its dual titanium heating elements offer exceptional durability and corrosion resistance. This heater supports both 115V and 230V operation, making it flexible for various spa configurations. The built-in manual reset thermal cutoff and flow switch help prevent overheating and regulate water flow, ensuring safe and efficient performance in low-flow circulation systems.