Nitrogen Pressure Test Table Air Conditioning Refrigeration Test Bench Tool It is used for pressure testing of air conditioners, refrig erants, automobiles, and central air conditioners. quality. Made of high-quality materials for durability The spherical structure valve can replace the conventional head, which is simple and convenient. Provides accurate nitrogen pressure testing. The large screen is easy to read., Weight: 0.78925489796 pounds, Manufacturer: ximie