Raritan Heat Thermostat Assembly Water. Raritan manufactures equipment for pleasure boats throughout the world. Products include marine toilets waste treatment systems icemakers and water heaters. Committed to the environment and preserving sea life Raritan designs products to help maintain an environmental balance and ensure the quality of marine waters. Specifications for Raritan Water Heat Thermostat Assembly: Manufacturer: Raritan Color: Black Package Contents: Raritan Water Heat Thermostat Assembly Raritan WH16: Heat Thermostat Assembly Water