Apeks Sidemount Regulator Kit comes with everything required to get gas out of sidemount cylinders, it comes complete with two DST first stages which are fitted with a 5th end port, two XTX50 second stages, two SPG's on short hoses, a lightweight longhose, a lightweight short hose, a lightweight wing inflator hose, a lightweight suit inflation hose, bungee necklace, 90o fixed elbow and finally a boltsnap. That's a lot of gear!
Sidemount diving originated from caving diving as means of fitting through very narrow passages, it also allowed cylinders to be pushed in front of the diver or removed completely to fit into even smaller holes. Sidemount diving offers excellent benefits to the advanced recreational and technical divers, streamlining is greatly increased as the cylinders are tucked under the divers armpits and are right in the divers slipstream, ease of movement through the water is therefore very easy. The use of two cylinders allows increases redundancy as the diver is carrying two completely independent systems. The cylinders can also be carried to the water by hand and attached either just before getting in or in the water, this makes sidemount diving much easier on the users back.