For mechanical pressure gauges (except fuel, nitrous, or brake pressure gauges). Includes 6 ft. of 1/8 in. copper line, 1/8 in. NPT Male to 1/8 in. compression fitting, 1/8 in. NPT Female to 1/8 in. compression fitting, grommet, and 1/8 in. NPT to 1/4 in. NPT bushing.