This Apeks 5th Port Upgrade Kit is only suitable for the current Apeks XTX 200 and Apeks XTX 100 first stages (FSR and FST type). The Apeks 5th Port offers the user more versatility in terms of hose routing, and port positions depending on the type of diving. This is especially important with divers diving double tank back gas.

This particular version incorporates a heat exchanger which acts as an additional safeguard against freezing. It is made from high polished marine chrome plating over marine brass.

Please be aware that this 5-port kit cannot be used on the old style Apeks XTX 1st stages. It has to be one of the current (post-September 2012) Apeks XTX 200 or Apeks XTX 100 with the new metallic decal.