Description Mastercool is the leading manufacturer of professional quality A/C manifold gauge sets. Our manifold gauge sets are constructed of the finest materials and machined with precision to the highest quality standards. At Mastercool, every manifold we build is built to last. Heavy duty forged brass body Large all metal handles are angled for ease of operation Free-floating piston type valves reduce o-ring wear Hose holder for convenient storage Silicone dampened gauges smooth out needle movement Gauges can be easily recalibrated in the field to maintain accuracy
