Premium quality Pressure gauge range: From 0 to 7 kg/cm it monitor’s either Pre or Post R.O water pressure which is essential to the functionality of your RO water treatment system. Gauge is made with waterproof stainless Steel 304 grade material. Display in two units kg/cm2 (Bar) and PSI (Pounds Per Square Inch) i.e. 1 Bar equals to 14.22 PSI and 1 PSI equals to 0.068 Bar. Dial Size : 100 mm [2.5 inch] and connection Size: 1 / 2” BSP male. Type of Mounting: Back Connection and weight is 180 gm.