The 1.5 kW Double Barrel Heater is a low-flow heater designed for efficient water heating in spas and hot tubs. Operating at 240V, it features a unique double barrel design for enhanced heat distribution, making it ideal for use with circulation pump systems. With auto-reset high-limit sensors, the heater offers reliable protection against overheating. Built from durable stainless steel, it is a dependable replacement option for various OEM models, especially in export or 50Hz systems.