... for testing 12V/24V, Vibration-free,Anti-airlock Submersible Marine Bilge Pump 12V 1100GPHCE,OEM factory,Sample for testing12V/24V,29mm outletVibration ... and ignition protected.5. To all existing safety standards.6. Water cooled motors for long life, with anti airlock design and ... diameter: 19mm to 40mm8,A must for Bilge, boat, ship, marine, ditch, home, garden craft, yacht, and cruis9,Technical date: ...