It can run dry without damage, no vibrations, very quiet. Fitted with internal bypass for inlet pressure control. Permanent magnet motor with self-lubricating shaft. The 4-diaphragm system prevents the pulsations that usually occur in the other fresh water pumps with a semi-open tap. (2 x 1/2″ threads and 2 x 14-mm with 1/2″ hose adaptors) and a plug-in inlet strainer. Capacity: 20 l/min, Power: 12 V, Consumption: 9 A, Working pressure: 2,80 Bar, Dimensions: 257 x 105 x 95 mm.