Refuel on the go with Flo n' go Superflo siphon pumps place the hose into your fuel source, twist the cap and pull the handle automatic shut-off and restart controls are right at your fingertips. The lightweight pumps work at any angle to fill hard-to-reach fuel tanks without spills, drips or messes. Flo n' go Superflo pumps are great for smaller engine jobs like lawnmowers, trimmers, chainsaws and more. These siphon pumps come complete with a shut-off valve that attaches to the closure cap of any manufacturer's plastic fuel can and a built-in child lock on the siphon handle for added safety.