For those jobs that require higher vacuum test values, Sinclair offers the Hi Vac series of vacuum boxes. These vacuum boxes are built tough to withstand the higher pressures produced by the external vacuum pump required with these boxes. Includes: on/off valve, vacuum gauge, quick disconnect fitting and 25ft of compressor hose. #HVPUMP.1ASSY Vacuum Pump w/Connectors sold separately.些工作的真空測值克提供真空箱真空系列。些真空箱承受的壓力所的些箱子外真空泵產生堅。包括開/關真空快斷開壓縮機管接頭和25尺。# hvpump.1assy真空泵W /接器單獨出售。