Mityvac 6895 Plastic Silverline Dual Converter PVC dual converter body with pressure/vacuum switch Compound gauge with 0-30 PSI (0-200 kPa) pressure and 0-30 in. Hg (0-100 kPa) vacuum indications (3) adapters for conversion to various Mityvac pumps Thumb pad Includes replacement duckbill valve, assembly screws, o-ring seals and instruction manual