Whale Smartbail 1In 1 1 2In PortThis pump installs quickly and easily from one side of a bulkhead and is one complete assembly with no additional fittings required. The included foam seal eliminates the need for sealant and the compact size is ideal for limited spaces. Includes quick connect safe release ports and an integral, robust, comfort grip handle. Patented diaphragm design ensures easy pump action. Ports : 1 1 2"