MAIN PAGE > REGULATORS > APEKS NITROX REGULATORS 0.00 € XTX40 NITROX M26 DS4 Nitrox Ready up to 100% . The XTX40 Nitrox/DS4 First Stage regulator incorporates the new feature of Diver Changeable Exhausts system (DCE). This gives the user a choice of the wider exhaust tee for minimal bubble interference(essential for underwater photography) and the narrow exhaust tee for a smaller compact comfortable regulator (ideal for use as an octopus regulator). The XTX40 regulator can be converted from a right handed hose configuration (as supplied from the APEKS factory in the standard) to a left handed one. This feature is known as the Reversible Venturi System (RVS). Changing the regulator to a left handed configuration is both quick and simple and can be performed by any APEKS Authorised Service Technician. p. Price: 0 €