Neptune III Package

The comprehensive, all-in-one full-face diving package bundled with the most advanced OCEANREEF mask w/ integrated vertical body balanced second stage regulator, and first stage regulator, pressure gauge, quick-connect hose, octopus  and a backup conventional mask. 

Purpose

Neptune III Package is created to provide divers a dive-ready full-face system 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
Extraflex Quick Disconnect Hose
Octopus (secondary regulator) with quick disconnect hose
BAR/PSI Pressure Gauge 
BUMP backup mask and snorkel
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

OCTOPUS

Auxiliary emergency second stage to provide air to the diver (or an out-of-air buddy) if needed.
• Standard downstream valve with Dive/Pre-Dive switch (no adjustment knob)
• Weight (without hose): 230 g
• Comes with male quick connection assembled on the Octopus
• Yellow Extraflex quick connection hose, 120 cm length
• Static intermediate pressure: 9.5–9.8 bar
• Maximum depth: 50 m / 162 ft (per EN regulation)

PRESSURE GAUGE

Single-piece brass body SPG with clear, dual-scale dial for monitoring cylinder pressure during setup, pre-dive checks, and the dive.
• Range: 0–350 bar / 0–5000 psi (full scale)
• Dual graduation: bar and psi
• Red safety zone: 0–50 bar / 0–725 psi
• Increments: 10 bar across the scale
• Fluorescent background retains readability for a period after exposure to light

EXTRAFLEX QUICK DISCONNECT HOSE

80 cm / 32" Black Extraflex QC hose and male connector that enable fast, secure connection/disconnection of the regulator integrated in OCEAN REEF full face masks.
Four-layer technology:
• Inner layer: on-toxic polyurethane blend for clean breathing gas
• Reinforcement: polyester layer for pressure resistance and flexibility
• Jacket: thermo rubber to keep the hose supple in cold water and after storage
• Outer layer: polyethylene anti-scratch reinforcement for abrasion and impact protection.

BUMP BACKUP MASK & SNORKEL

A compact backup bailing system to carry on your BCD or belt for emergencies or surface use.
• Comfortable conventional mask with a soft fabric strap for quick, easy donning.
• Flexible, semi-dry snorkel that rolls up for compact storage.
• Tough storage pouch sized to fit the mask and rolled snorkel, with 2 D‑rings and a belt loop for attachment.

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.