Each first stage has three medium pressure ports and one high pressure port

flexible wetsuit that is feature-rich and developed for the demands of advanced diving

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

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

The programs offer a choice of run times and modes

rk4 dive fins AccessoriesSafety Each first stage has threeConserve 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.