Purpose: The general pressure gauge is suitable for measuring the pressure of liquids, steam and gases that do not explode, crystallize, solidify or corrode copper and copper alloys. Iron and aluminum alloy material: metal , sturdy and durable, high temperature resistant, shock resistant and corrosion resistant. Accurate and clear: The water pressure gauge pointer is accurate and sensitive, the mark scale is clear, the range is 0 to 200psi and 0 to 14bar, and it is easy to read. Easy to install: This water pressure gauge uses 3/4-inch internal hose threads for easy installation and a perfect fit, no leaks and water saving. Wide range of uses - suitable for measuring pressure and voltage of water, gas and oil without clogging the pressure system.Or corrode copper alloy parts. Therefore it can also be a perfect pressure gauge for pool filters. Material: Metal colour: As Shown Package Contents: 1 x barometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.