The Dab DP 251 T is a three phase self-priming pump. The Dab DP range are self-priming pumps with an ejector system for deep suction - usually wells - up to 27m deep. The ejector system is suitable for 4" or larger wells. These pumps are often used for private water supplies in remote dwellings not connected to the mains water supply. There are also applications in light agriculture.