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

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

The XL4+ also makes an ideal stage regulator

The programs offer a choice of run times and modes

but are constructed from super-tough Armoguard slick skin for increased abrasion resistance

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.