Weight of the Liberty CCR prepared for diving (without ballast): 36.5 kg (80.5 lb)
Transport weight (without tanks, without scrubber filling): 23.5 kg (51.8 lb)
Endurance according to EN 14143:2013 (CO2 production of 1.6 l/min): 2:48 h
Endurance with CO2 production of 1 l/min (corresponds to increased effort in cold water and at great depth): 4 h
Endurance with CO2 production of 0.7 l/min (corresponds to moderate effort in favorable conditions): 6 h
Maximum depth in tests according to EN 14143:2013: 100 m (330 feet)
Maximum depth with Apeks DST4 1st stages 170 m (557 feet)
Depth gauge precision test: 350 m (1,150 feet)
Pressure test of all components: 600 m (1,960 feet)
The deepest dive we are aware of: 183 m (600 feet)


Weight (ready to dive) approx. 21.6 kg (47.6 lb) (regular + stainless), 20.5 kg (45 lb) (shortened + titanium)
The total weight is under 23 kg (50.7 lb), when ordered with a Peli Case AIR. Ready to fly!
Neutral buoyancy (in both the shortened and the regular version)
Two tanks 2 liter, 230 bar
Manual add valve for diluent (located at mouthpiece)
Manual add valve for oxygen (located at mouthpiece)
Diaphragm automatic diluent valve
Overpressure/dump valve on exhale counterlung
Dive/surface valve
Scrubber 2.5 kg (in both the shortened and the regular version)
Scrubber duration 2:48 (by test described in EN 14143:2013, para 6.6.2), 4 to 6 hours in normal conditions
First stage regulators: Apeks Flight
Head-up display
Two handsets
100% backup system (two electronics, two acu packs, four O2 sensors, two He sensors, four pressure (depth) sensors, two solenoids)

Prices ranges from: 8 250 Euros and up


First and only CCR system that has an open architecture framework to support a variety of CO2 scrubber systems, electronics, gas supply cylinders, and harness and buoyancy devices. This modular approach enables the user to configure the CCR to meet operational requirements. First CCR system to successfully integrate other commercially available OEM company’s dive computers and system controllers into existing ISC automated oxygen injection controller, (APECS™) system. All integrated electronics pass all current regulatory requirements.

ISC designs rebreather systems to meet the customer’s requirements and more. All products designed by ISC shall meet modern up to date standards for safety system design such as EN 61508 functional safety, the United Kingdom Minister of Defense 56, EN 61000,

ISO 9001:2008 and other relevant standards that support quality assurance for safety-related instrumentation. Safety-related equipment is defined as any hardwired or programmable system where a failure singly or in combination with other failures/errors, could lead to death, injury, or environmental damage. ISC designs using a life cycle approach model. The model will define the life cycle, activities and defenses against systematic failures necessary to achieve functional safety and that it is used in stages of product development to include the operating life of the equipment. This is not just limited to electronics but includes breathing loop systems.

The model also defines proposed design architecture and if it meets the target failure probabilities. The safety assessment work exercises systematic methods of layer protection analysis and process hazard analysis. Two examples of this are FMECA (Failure Mode Effects Critical Analysis), and Fault Tree Analysis. This provides a Safety Integrity.

Prices ranges from: US $9 395 and up


The Inspiration EVP Closed-Circuit Rebreather is a hybrid unit offering advantages from both stable-mates. It features the longer duration scrubber of the XPD and the smaller cylinders (and therefore unit size) of the EVO. The Inspiration EVP is a very popular model - sport or technical, travel or expedition - it is an excellent all-rounder for divers who do a mix of dives or who want a smaller unit than the XPD while retaining its extended duration.

  • Scrubber Size – 2.5kg
  • Cylinder Size – 2 x 3 litres
  • Ready-to-dive weight – 29.5kg

The Inspiration EVP is supplied complete with:

  • The AP Vision dual oxygen controller package with wrist-mounted handset and Head-Up Display (HUD)
  • Choice of Counterlungs – Over-the-Shoulder or Back Mounted
  • Cylinders, Hoses, First Stages and Case parts
  • Contents Guages, Audible Alarm and Manual Inflators
  • Integrated Weight Harness with thru-the-leg straps
  • 16kg Buoyancy Control Wing with Auto Air  - OC bailout valve
  • PC Download & Logviewer Software


All AP rebreathers are ready-to-dive with the above standard features but you can go further and spec your own unit – with multiple options and upgrades - to suit your personal preference and dive goals. See the Configurator link below.

Software Upgrade Options 

  • All AP rebreathers come with Dive Timer as standard. Upgrade to integrated Deco software – Nitrox or Trimix
  • AP Divestore with AP Projection Diveplanner software 

Hardware Options and Upgrades 

  • ADV – Auto Diluent Valve (with or without a Flowstop isolator)
  • Scrubber Life Monitor – Tempstick
  • OCB – Open Circuit Bailout Mouthpiece
  • CO2 Sensor
  • Over-the-Shoulder or Back Mounted Counterlungs
  • 22kg Wing (Inspiration XPD only)
  • 0.4 litre emergency mini-cylinder
  • Rebreather Lifting Bar
  • Gas Connector Systems
  • Black Cover 

Prices ranges from: £5 741,32 and up




Consultation (Free)

What do you dive today?
What are your need?

What are your goals?



and Planning

Based on the consultation we will give you price information and plan for your training.


Configuration and

Construction Stage

We will now configure your final unit and send thespecs to the factory for construction..


Training &


The final stage is the training where we make sure your are a safe diver, before you leave us.