Aluminium cylinder head with cast iron cylinder gives added resistance to wear. Suitable for on site applications or anywhere that requires 110V. Pump head directly coupled to heavy-duty induction motor for reliable and smooth operation. Fitted with fully automatic pressure cut-out switch and twin gauges displaying tank and working pressures. Copper wound motor provides longer lasting performance. ALUMINIUM CYLINDER HEAD AND CAST IRON CYLINDER - Gives added resistance to wear for improved product life. 110V - Suitable for on site applications or anywhere that does not have a 230V supply. TWIN GAUGES One displays the tank pressure and the other displays the working pressures. COPPER WOUND MOTOR - Provides longer lasting performance. FULLY AUTOMATIC PRESSURE CUT-OUT SWITCH Cuts off.