SPX Flow Johnson Pump 42123 Cartridge 1250 GPH Bilge Pump. Compact, all-in-one motor/impeller unit. No tools needed for maintenance. Energy efficient. Water-cooled motor for long service intervals. Easy-to-install Dura-Port discharge ports eliminate stress cracking caused by over-tightened hose clamps. Includes both a straight and a 90 degree smooth elbow Dura-Port. 1-1/8" hose. 12V.