XTX50 Regulator

http://www.cormetondivesupport.com/images/th-XTX50-REGULATOR-A-CLAMP_11302192711.jpg
Second stage -

Pneumatically balanced, fully diver adjustable with venturi and breathing resistance control. Features heat exchanger to protect against freezing - so ideal for diving all over the world, even in the coldest waters. Micro adjuster for technician settings to optimise breathe preformance. Right or left hand configuration, small alternative exhaust system included.