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Thermo valves are the standard by which quality is measured in the scuba diving industry.  As the largest manufacturer of scuba cylinder valves, Thermo has long been the supplier for OEM valves for all of the major cylinder manufacturers.  The Thermo K valve is the standard valve used in aluminum scuba cylinders for recreational diving and allows attachment of any yoke clamp regulator.

The Thermo Pro valve is a convertible valve used in aluminum and steel scuba cylinders for recreational and technical diving.  The removable insert is used in place for yoke regulator connectors and removed for use with DIN regulator connectors.  The yoke plug is removed with a standard hex wrench.

The Thermo 300 bar DIN valve is for use on steel scuba cylinders with pressures up to 4000 PSI.  The seven-threaded DIN inlet accepts only the long (300 bar) DIN regulator fittings.

The Thermo Pro Modular valve features the removable insert that allows you to use either yoke clamp or DIN clamp regulators.  The Thermo Pro Modular valve can be used alone as a single cylinder valve with the included plug, or to construct H-valve or twin cylinder manifold assemblies with additional Thermo components.  This valve is the Right Hand valve and mates only with other Right Hand Thermo components.

The Thermo Pro Modular valve features the removable insert that allows you to use either yoke clamp or DIN clamp regulators.  The Thermo Pro Modular valve can be used alone as a single cylinder valve with the included plug, or to construct H-valve or twin cylinder manifold assemblies with additional Thermo components.  This valve is the Left Hand valve and mates only with other Left Hand Thermo components.

The Thermo DIN Modular valve is for use with regulators with DIN fittings.  The Thermo DIN Modular valve can be used alone as a single cylinder valve with the included plug, or to construct H-valve or twin cylinder manifold assemblies with additional Thermo components.  This valve is the Right Hand valve and mates only with other Right Hand Thermo components.

The Thermo DIN Modular valve is for use with regulators with DIN fittings.  The Thermo DIN Modular valve can be used alone as a single cylinder valve with the included plug, or to construct H-valve or twin cylinder manifold assemblies with additional Thermo components.  This valve is the Left Hand valve and mates only with other Left Hand Thermo components.

The Thermo Pro H-Valve attachment allows you to convert a Thermo Pro Modular valve for use with two second stages on a single cylinder, providing complete regulator redundancy. The H-Valve center plug is used installed for yoke clamp regulators and is removed for use with regulators with a DIN fitting.  This Thermo Pro H-Valve attachment is Right Hand and can only be mated with Thermo Right Hand Modular valves.

The Thermo Pro H-Valve attachment allows you to convert a Thermo Pro Modular valve for use with two second stages on a single cylinder, providing complete regulator redundancy. The H-Valve center plug is used installed for yoke clamp regulators and is removed for use with regulators with a DIN fitting.  This Thermo Pro H-Valve attachment is Left Hand and can only be mated with Thermo Left Hand Modular valves.

The Thermo 300 Bar DIN H-Valve attachment allows you to convert a Thermo  Modular valve for use with two second stages on a single cylinder, providing complete regulator redundancy.  This valve accepts regulators fitted with the 300 BAR DIN fitting.  This Thermo 300 Bar DIN H-Valve attachment is Right Hand and can only be mated with Thermo Right Hand Modular valves.