The Whale Smartbail is a compact Manual Bilge Pump. Its modern, slim-line design is ideal for confined spaces and the sleek integrated handle makes the pump instantly ready to use. It is quick and easy to install by one person with no additional fittings needed. The Whale Smartbail Pump has a patented diaphragm allowing for a smooth pump action and the self-sealing design means no messy sealants are needed. This pump includes 2 sets of ports for use with either 25mm (1") or 38mm (1 ½") hose.