Compliment your Calypso and Titan regulators with this reliable, easy breathing octopus. Referred to as the Calypso/Titan Octopus Classic, you now have a choice as to which octopus configuration will best suit your needs. High visibility 39" yellow hose and high visibility yellow cover makes it easy to locate in an emergency. The venturi lever prevents unwanted free flow when not in use. Easy purge front cover.