Lightweight and compact transfer pump. 1817Ltr/hr flow rate and delivers 908Ltr of transferred water with one M18 5.0Ah battery charge. Redlink intelligence can recognise when the tool stops moving water and automatically shuts itself off to avoid dry pumping. Flexible impeller, and powerful motor, generate a lift height up to 5.5m and a head height up to 23m. 3/4" BSPT male thread reception for any standard water hose. Inner hose diameter of 19mm is recommended for the inlet for optimised performance. Only to be used for water that is clear of debris. Flexible battery system: works with all Milwaukee M18 batteries. Pumps up to 30.3;Ltr/min Overheat Protection On/Off Switch Aluminium Impellor Does Not Include Battery or Charger Pumps up to 30.3;Ltr/min Overheat Protection On/Off Switch Aluminium Impellor Does Not Include Battery or Charger