Durable, high-quality compound vacuum/pressure gauge with accurate diaphragm movement. Replacement for Mityvac Silverline and Selectline dual vacuum/pressure pump gauge. Indicates 0-30 psi (0-200 kPa) pressure, and 0-30 inches of Mercury (0-100 kPa) vacuum. 4.4 oz. (125 g) 2ins x 1 1/8ins x 2 7/8ins (50 mm x 29 mm x 73 mm)