Viti 1st stage 1 / 8 + 2 guarnizioni in alluminio De Dietrich S15929282

This screw 1st stage 1/8 comes with two aluminium gaskets, making it a complete set for adjusting gas pressure in burner systems. The 1/8 thread size is standard for many gas valves, and the aluminium gaskets provide a reliable seal to prevent leaks. Ideal for technicians performing gas pressure regulation during boiler servicing or burner tuning.