JABSCO 18680-1000 VANE PUPPY PUMP REVERSIBLE. Ideal for transferring diesel fuel. Self priming to nine feet vertical lift. Built in on-off reversing switch. 1" external hose barbs with .5" internal pipe threads. Pump head may be rotated 180 degrees , and unit can be mounted in any position. 12 Volt DC permanent magnet, intermittent duty, stainless steel shaft.