... fillable 5.accuracy1.6% all stainless steel liquid filled pressure gauge 1)all stainless steel for case,movement, and bourdon tube ... SUS304Scale: PSI, Bar, MpaBourdon Tube: Stainless SteelMovement: Stainless SteelDial: 1.5',2',2.5',3',4',6'Window: Polycarbonate; Safety ... Aluminum, Black finishConnection: 1/8 NPT/PT/BSP/ORB 1/4 NPT/PT/BSP/ORB Stainless Steel/brass stainless steel liquid filled pressure ...