Palmer 40KBDLA15#HG Heavy Duty Black Steel Gas Test Gauge, 0-15 psi/0-30"Hg Range, 1% Accuracy, 3/4" NPT Connection, Lower Mount

The Palmer Gas Test Gauge is specially designed to test for leaks in residential and commercial gas, air, and water lines, including drain, waste, vent, and low pressure plumbing lines. This gauge features a 4 inch (100mm) Steel case (painted black), a solid brass internal body, a phosphor bronze diaphragm, and a plastic lens. Class 1A Accuracy of 1%, this gauge features a lower connected brass valve body with a 0.75" NPT Process Connection, and comes with attached Hex Boy and Schrader Air Valve. White Aluminum dial face is marked with two scales - outer scale measures up to 15 PSI in black lettering, while inner scale measures up to 30" Hg in blue lettering. Measures in 0.10 pound (0.5" Hg) increments.