About This Item: Reliable and precise testing results: the dual-valve system (Twin Valve) enables self-testing of the pump, as well as a precise fine adjustment of the pressure; especially precise reading as needed: finely scaled (scaling 0.1 bar) pressure gauge available separately; testing hose with steel mesh prevents reading mistakes that can happen when the hose expands during operation. Technical Data: Product width: 170 mm; product weight: 8 kg; product height: 260 mm; product length: 720 mm; delivery rate: 45 ml/Hub; connection: 1/2 inch; tank capacity: 12 l.