The faucets are indissociable elements of your diving bottle and therefore the equipment of any diver. To make your choice of faucet, you must base yourself on several elements. In the first place, the output of the tap: this one can be in DIN G5 / 8 or if you use Nitrox gas will be needed to look at M26.en second diving bottle faucets comes the tap pressure pressure diving. This is an important factor and it must match the pressure of your dive bottle. We find on the 232bar faucets or 300bar faucets. There are also simple dive valves with or without tap extension that can adapt to many types of dive. But still double out-out faucets or bi-bottle faucets with their insulation valve.The diving valve thread will generally be diving valves in M25x2. Regarding small diving bottles or mini there are faucets in M18x1.5.