Gusher Urchin Manual Bilge Pump On Deck Mount Removable HandleSince the 1940s Whale engineers have refined our manual bilge pump designs and completed extended life testing - the result Whales iconic manual bilge pump rangeManufactured by hand using high grade materials and drawing on more than 60 years experience.FeaturesEasy of operation - Smooth easy actionEasy maintenance - Clamp ring easily removed for pump head rotation and quick maintenanceVersatility of design - Dual size nozzles for 25 mm (1") or 38 mm (1") hose to suit your plumbingEfficient performance - up to 55 ltrs (14.5 US gals) per minuteThree different mounting models (deck, bulkhead and thru deck models)