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 12.5 gallons/minute(750 gallons/hour). Max. recommended discharge head 2.5m. Heavy duty motors with stainless steel shafts and tough thermoplastic bodies. Snap-off strainer for easy cleaning