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

This popular accessory is ideal when it becomes necessary to add additional weight to your rig

the VX2 mask withstands the demanding conditions of the dive environment

The Luna primary light has a 2000 lumen max output and up to 8 hours run time off one charge

db4 1st stage dive regulator DiveRegulators The environment that an RK3The 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. The XL4+ regulator is a high performance option for those divers serious about weight savings.