ATTWOOD PORTABLE MARINE POWER PUMP. This product can pump upto 200 gallons per hour or over 3 gallons per minute. Up to 5 hours continuous use on 3 alkaline D-cell batteries. Completely submersible. This product includes an adaptor for use with a garden hose, it can lift water to a height of 40" and can be used as a siphon. You can use this pump to bail boats and to drain pools and boat covers. Use this pump to empty aquariums, hot tubs and clogged sinks or washing machines.