All-in-one pump & switch – No float switch required Pump turns on when water level rises & shuts off when water is removed Water cooled motors for long life, with anti airlock design and moisture tight seals. Output: Up to 1100 gallons/hour, Max. recommended discharge head 4m. Heavy duty motors with stainless steel shafts and tough thermoplastic bodies. Includes comprehensive user manual with installation instructions and wiring diagram Snap-off strainer for easy cleaning Connections: For 19mm (3/4″) bore hose. Totally submersible and ignition protected. Compact pump for smaller vessels. Tough plastic body. Can be used with switch panel for manual override