CERTIFICATION EN250/2014 FOR COLD WATER.
THE T10-SEAL CHAMBER 1ST STAGE IS ENVIRONMENTALLY SEALED? PROTECTING IT AGAINST ICING IN COLD WATER AND AGAINST CONTAMINATION FROM PARTICULATE MATTER IN SILTY CONDITIONS. WHEN PAIRED WITH THE MASTER SECOND STAGE? WHICH INCLUDES AN INTERNAL HEAT EXCHANGER? THIS REGULATOR IS AN EXCELLENT CHOICE FOR DIVERS EXPLORING THE MOST EXTREME COLD WATER ENVIRONMENTS.