... Nominal Size : 1.5"(40mm) , 2.0"(50mm), 2.5"(63mm), 3.0"(75mm) ,4.0"(100mm),Pressure Range : -1~0bar to 0~400barAccuracy : ±1%, ±1.6%, ±2.5%Working Temperature ... : Aluminium Pointer: Aluminium ,black Window: Glass Or Plastic Thread: 1/8",1/4", 3/8",1/2", PT,BSP,NPT etc. Fill: Glycerine(standard) Silicone(optional ...