Submersible, self-priming, centrifugal pump is ideal for jon boats, utility boats, dinghy's, inflatable boats and all other small watercraft. Also great for removing fluid from many non-marine applications. Powered by 3 D-cell batteries, it can run dry without damage. Wide strainer base adds stability with suction cup or screw mount. ?" x 36" hose wraps around body for stowage and includes clip to attach hose to transom. GPH 250 Size 5? x 5? x 12?