High pressure pigtail hose to connect G12 standard to M20 bulkheads regulators.
M20 x 1.5 parallel thread also known as W20 is a standard connection used in caravanning.
The total length of the hose is 45cm or 17.8 inches.
The hose is equipped with excess flow valve. This prevents the gas from flowing in case of physical damage to the hose.