DB4 INT 1st Stage Regulator

The Apeks XL4+ is a compact, lightweight regulator suitable for diving in all environments including cold water locations. Its design and low weight help reduce jaw fatigue on long dives. The XL4+ also makes an ideal stage regulator, perfect for the exploration diver with a large amount of equipment. Not available as a stage 3 or stage 4 set.

Features:

First Stage:
– 2 high pressure ports.
– Compact machined first stage based on the expedition tested Apeks DS4 platform.
– Break through, innovative over-moulded first-stage endcap andenvironmental diaphragm helps prevent ice build-up that can cause firststage free flow in extreme circumstances.Also protects the first stage from impact damage
– Large surface area heat exchanger diaphragm clamp helps increase thegas temperature inside the first stage, resulting in improved cold water performance.
– Unique over-balanced diaphragm design – as the diver descends, the overbalancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth.

Second Stage:
– 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.
– White flexible nylon braided hose has better cold water performance than 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.
– Compatible with XL4 Octopus (See page A25)