Brand: Metal Work Item: Mechanical pressure gauge Mounting: Center back Size: 40mm x 40mm Process Connection: G1/8 male BSPP Working Fluid: Air or inert gas Scale: 0 to 180 psi Metal Work pneumatic mechanical pressure gauge, 40mm x 40mm, 0 to 180 psi, G1/8 male BSPP process connection, center back mount.