Free-floating piston type valves reduce o-ring wear
Extra access port for vacuum line
Silicone dampened gauges smooth out needle movement
Gauges can be easily recalibrated in the field to maintain accuracy
Mastercool is the leadingmanufacturer of professional quality A/C manifold gauge sets. Our manifoldgauge sets are constructed of the finest materials and machined with precisionto the highest quality standards. At Mastercool, every manifold we build isbuilt to last.