Engineered with 20A greatest current capacity, 80, 000 cycle durability, and erosion resistant copper / PVC construction to withstand demanding pneumatic operations while maintaining 20MM bracket connection normally closed design prevents accidental activation, while standardized 9.5MM relief port dimensions secure seamless integration with most air compressor accessories and piping networks Optimize air systems with this compressor pressure regulator adapter switches assembly, featuring 5 8KG ( 90 125PSI) pressure stabilization and double 220 / 380V electric compatibility for industrial reliability Perfect for regulating compressed air flows in pneumatic equipment, automotive repair stations, industrial production lines, and residential plumbing installations requiring 6MM exhaust pipe compatibility Ideal for facility maintenance technicians, manufacturing plant operators, and enthusiasts requiring professional pressures control in air compressor systems and workshop tools, Manufacturer: YanFengPro