... Sample for testing 12V/24V, Vibration-free,Anti-airlock Submersible Marine Bilge Pump 12V 1100GPHCE,OEM factory,Sample for testing12V/24V ... with anti airlock design and moisture tight seals.7. Snap-lock strainer base for easy installation and removal. Silent vibration free ... diameter: 19mm to 40mm8,A must for Bilge, boat, ship, marine, ditch, home, garden craft, yacht, and cruis9,Technical date: ...