Umizaru Black Pearl

Balance type

Balanced or unbalanced

Adjustable inhalation effort

Features a control knob or lever that divers can adjust, altering the ease of air delivery and reducing breathing effort

Venturi Adjustment

This is a switch or knob that controls the flow of air inside the regulator to assist or resist free-flow

Cold water suitable

Purge button

The design and ease of use of the purge button, which is used to clear water from the regulator

Materials and construction

Types of materials used, such as silicone, plastics, and metals, essential for functionality, durability, and diver comfort underwater

Mouthpiece

Material, design, and ergonomic features to ensure diver comfort and minimize jaw fatigue during prolonged use

Hose type

Material and design, such as traditional rubber, lightweight braided, or hybrid varieties

Exhaust Valve Design

Describes how the regulator releases exhaled air, with options like standard, adjustable, dual, wide, or compact exhaust tees, affecting bubble dispersion and breathing ease

Orientation

Describes the direction of hose attachment, with common orientation options including 'Fixed Left,' 'Fixed Right,' 'Convertible LH or RH,' and 'Ambidextrous'

Weight

Available in octopus variant

Available in nitrox variant