The items in the image appear to be brass LPG (liquefied petroleum gas) cylinder control valves or camping gas valves.
Specifications
- Material: Often made of brass or zinc alloy.
- Application: Designed for outdoor, commercial, and household use with LPG (Liquefied Petroleum Gas) or N.G. (Natural Gas).
- Connection Sizes:
- Common inlet size: M22x1.25.
- Common outlet size: M16x1.5.
- Other variations exist for different applications.