Dual voltage twin immersion heater with 2 1/4″ BSP thread. 300W 12V side and 750W 240V side. Suitable for marine calorifiers and hot water cylinders with dual voltage heating requirements.

The Surejust 12V/240V twin immersion heater provides dual voltage heating capability in a single 2 1/4″ BSP element. With a 300W 12V side for use on battery power and a 750W 240V side for shore power or mains, it is an ideal solution for calorifiers that need to heat from both on-board electrical systems and shore power connections.

Please note: the lid design may differ slightly from the product photograph.

• 300W 12V side

• 750W 240V side

• 2 1/4″ BSP thread

• Dual voltage in a single element

• Suitable for marine calorifiers and hot water cylinders