Raritan Head Front Cover w/O-Ring Crown. 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 Crown Head Front Cover w/O-Ring: Manufacturer: Raritan Color: Black Package Contents: Raritan Crown Head Front Cover w/O-Ring Raritan CH18W: Head Front Cover w/O-Ring Crown