CONNECTION; CONNECTION TYPE: EXPANSION REDUCTION ADAPTER WITH O RING; THREAD TYPE: G 1/2” (BSPP); MAXIMUM WORKING PRESSURE: 400 BAR; MATERIAL: ZINC PLATED CARBON STEEL; DIMENSIONS ACCORDING TO STANDARD: ISO 1179-1 / DIN 38 52-2; L2 THREAD TYPE: G 3/4” (BSPP); DESIGNATIONS ACCORDING TO PARK CATALOG ER 4100-9-UK; MANUFACTURER 1: PARKER; N-PART 1: RI1/2EDX3/4A3C-S