Neptune III  System

The complete full-face diving system bundled with the most advanced OCEANREEF mask w/ integrated vertical body balanced second stage regulator, and first stage regulator.

Purpose

Neptune III System is created to provide divers an essential and practical  equipment delivering  the most natural and comfortable underwater experience.

Key-features

Inside the box

Neptune III Full Face Mask w/integrated Second stage regulator
Doffing Handle
Surface Air Valve
Extender Kit
1st Stage SL 35 TX (choose INT or DIN configuration)
Standard Hose
Neptune III Backpack
Multitool

Technical Specifications

NEPTUNE III MASK

• Second Stage Regulator: Vertical, body balanced - Neptune III regulator delivers amazingly smooth “silk-like” breathing at any depth. Cold-water CE certified for full-face use.
• The Neptune III air circulation system: designed to minimize fogging and reduce the amount of CO and CO2 build-up.
• The silicone oral-nasal pocket: built with two one-way valves through which air is inhaled.
• 3D Equalization System: The Neptune III is equipped with a patented internal device to close the nostrils and allow underwater equalization. Patented design 3-way directional adjustment system (up/down, wide/narrow, close/far) to push the mask towards the face when needed causes the plugs to create a nasal seal.
• Dive/pre dive lever (Venturi): it gives additional control over free-flow tendencies at the surface or in current.
• Purge Button: it manually releases a strong flow of air through the regulator to quickly expel any water that has entered the mask.
• Surface air valve: it allows IDM divers to breath ambient air when at the surface.
• Face Seal: patented bellows double “S”, “spring profile”, skirt. Super comfort thanks to the “floating effect” on the face.
• Visor: Transparent polycarbonate with both sides coated in siloxane resin for improved scratch, chemical resistance and a better light transfer. Impact resistance tested by STANAG 4296 standards: impact of a steel ball traveling at 540 kph (335 mph).
• Field of vision: Larger field of vision than competitors (italcert Certification PPE-05 Rif 1332/05).
• Extender Kit: an add-on frame and accessories system. It adds protection, mounting options for cameras/lights/comms, and customization.
• Head Harness: six straps meaning no risk of losing reg if unconscious or violently hit.
• Fast rotating buckle system: for comfortable and quick doffing and donning on the surface and secure, fast operations during underwater bail out or wearing.
• Doffing Handle: one-hand quick-release handle that attaches to the Neptune III’s quick release system to make removing the mask easier.

FIRST STAGE

• High-performance balanced diaphragm first stage with anti-freeze kit, designed to supply stable intermediate pressure across varying depths and tank pressures.
• 2 High Pressure (HP) ports: 7/16-20 UNF
• 4 Medium Pressure (MP) ports: 3/8-24 UNF
• Static intermediate pressure of 9.5–9.8 bar (approximately 138–142 psi)
• Approximate flow rate: 4800 l/min at 140 bar

NEPTUNE III BACKPACK

Purpose-built backpack for scuba divers with mask compartment for smart and quick access to your Neptune III and high-capacity lower compartment with draining mesh for first stage, hoses, octopus.

Safety

With the Neptune III Full Face Mask, losing your regulator is no longer a risk—the second stage is fully integrated into the mask, ensuring continuous access to air in every situation, also if unconscious. Moreover when equipped with OCEAN REEF communication systems, the Neptune III allows you to talk to your dive buddies or even with the surface, ensuring an extra layer of safety in case of emergency.The full-face design also protects your face from potential harmful substances in the water.

Size Guide

The Neptune III Full Face Mask is available in two sizes, Small/Medium and Medium/Large. It is essential to choose a suitable size. You can choose between size S/M (for adults with smaller faces,
women and children over 12 years old) and size M/L (for an adult male, or larger faces).
Measure the distance between the bridge at the top of your nose and the bottom of your chin.
• Choose size S/M if it is BETWEEN (3,9”) 10 cm and (4.5”) 11.5 cm.
• Choose size M/L if it is MORE than (4.5”) 11.5 cm.
There are two different size categories on the chart: Small/Medium and Medium/Large. If the measurements
fall within the both ranges, then the diver should technically be able to wear either full face mask (M/L or
S/M), and in that case should try on a mask to select the best fit. Once the mask is tight on your face, if there is NO SPACE between your chin and
the silicone skirt of the mask, you’ve got the right size.

Certifications

• CE marked
• The Neptune III Full Face Mask is a Category III Personal Protective Equipment (PPE) certified in accordance with EU Regulation 2016/425.
• Fully compliant with EN 250:2014A
• Suitable for cold water use (<10°C)
• Tested by Divelab US to exceed performance at -61m / -200ft 
• EU Type Examination (Module B) certified by Notified Body No. 0477 – Eurofins Product Testing Italy Srl
• Production Quality Assurance (Module D) supervised by Notified Body No. 0426 – Italcert Srl
• Each component features a unique serial number to ensure traceability and warranty validation.
• Mestel Safety Srl and OCEAN REEF INC Quality Management Systems are ISO 9001:2015 certified by NQA Limited - Registration No. 09351758

Warranty

Neptune III Full Face Mask lifetime warranty; Each other component 2 years warranty.