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Neptune IINeptune Space

The Neptune II mask is for use with your conventional regulator. The mask includes 3 DIN thread ports, two of which for the installation of a conventional 2nd stage regulator by removing the mouthpiece and using a specific dedicated connector (medium size (if individually required: code 33021); a small size regulator connector (code 33020) is available as a separated accessory). The third port is available for the installation of an underwater communication unit. The 2nd stage may be installed in the front or left side of the mask. The in air weight is less than 600 grams (22.00 0z). The NEPTUNE II mask has a limited lifetime warranty.


Use of over-injected regulators
Over injected regulators have a diaphragm with an inhalation cracking pressure below zero. These regulators "free flow" easily, and as a result, should not be used with the NEPTUNE II masks. Ask OCEAN REEF customer service for the best choice.


Regular Connector

Regular Connector

small - product code: 33020
medium - product code: 33021

A special adaptor which allows the connection of several kinds of regulators. The adaptor is available in two sizes, medium (standard) and small. The adaptor fits in place of the surface air valve.


The NEW Neptune Mask Skill & Adjustment Videos:

Warning! Servicing MUST be provided by an authorized OCEAN REEF servicing center. Viewing this video does not authorize anyone to service OCEAN REEF equipment.

OCEAN REEF is not responsible for any unauthorized servicing of OCEAN REEF equipment.

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