The pneumatically balanced valve provides superior performance for an alternate air source

The environment that an RK3 is used in will tend to dictate the size of fin that you need

The XL4+ also makes an ideal stage regulator

With four medium-pressure ports strategically arranged on a rotating turret

increasing the temperature by an average of 2°C with equalization of heat from warmer areas to colder areas

rk4 dive fins AccessoriesSafety The pneumatically balanced valve providesConserve energy with this compact, wide blade technical fin. Providing outstanding maneuverability in confined spaces and overhead environments, the RK4 also delivers optimum performance in open spaces. Suitable for use with both wetsuits and drysuits, the RK4 fins are perfect for frog kicking and back finning.