Kit includes: 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 Replacement duckbill valve Assembly screws O-ring seals Instruction manualSpecifications:Weight: 4.6 oz (130 g)Size: 3ins x 2ins x 4ins (75 mm x 50 mm x 100 mm)