Apeks XL4+ Stage 3 Regulator Set

The Apeks XL4+ stage 3 regulator set is expertly crafted for optimal performance in all diving environments, even cold water. Its innovative design and lightweight build effectively reduce jaw fatigue on prolonged dives, making it a top choice for divers.

The XL4+ regulator set is an excellent choice for technical divers who require multiple pieces of equipment, making it an ideal stage regulator. With its superb performance and emphasis on weight reduction, the XL4+ is highly recommended for serious technical divers.

Utilizing the same over-balanced diaphragm design as the rest of Apeks, the first stage includes a heat exchanger for optimal cold water performance. With four low pressure ports and two high pressure ports, this set provides ample hose options. Additionally, the two HP ports allow for use of a pressure gauge and wireless transmitter to monitor air consumption.

The compact second stage features a balanced valve for effortless breathing, a diver-controllable venturi switch, a heat exchanger on the inlet for better cold water functionality, a compact exhaust tee, and an Apeks comfo-bite mouthpiece for maximum comfort during dives.

The set includes two braided (white and yellow) low pressure hoses.

Features – First stage

• Compact machined first stage based on the expedition tested Apeks DS4 platform
• Innovative over-moulded first-stage endcap & environmental diaphragm – Helps prevent ice build-up that can cause first stage free flow in extreme circumstances, also protects the first stage from impact damage
• Large surface area heat exchanger diaphragm clamp helps increase the gas temperature inside the first stage, resulting in improved cold water performance
• Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient, resulting in superior performance at depth
• 2 HP ports & 4 MP ports

Features – Second stage

• Compact and lightweight second stage improves comfort and helps reduce jaw fatigue on long duration dives
• Large heat exhanger to improve cold water preformance and freezing resistance. High performance pneumatically balanced lever operated poppet valve
• Large, over moulded self-flushing and controllable purge button
• Ergonomic Venturi lever is easy to use and locate. Flexible nylon braided hose has better cold water performance than a traditional rubber hose
• Standard metallic hose connection for interchangeability
• Comfo-bite mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place
• Re-useable mouthpiece clip makes it simple to change mouthpieces in the field
• Durable and flexible rubber exhaust tee provides excellent bubble diversion
• UV inhibitors to help prevent discolouration of the white materials