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Refine the map to reflect vessels that fit your business preference by clicking on the 'Ships' icon 
to open a drop-down menu of filters.
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You can filter vessels by Ship Type, Specifications, and Advertised tonnage.
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You will see more filtering options by toggling Work Vessel, Passenger, Other
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Filter by Specifications - consists of 9 filter headings, each has underlying sub-filters as follows:
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