Johnson Ultima Automatic Submersible Bilge Pump w Integrated Switch The Johnson Ultima Bilge Pump is a sleek, reliable and compact unit with an integrated switch ready to install and run for years. Ultima Bilge Pumps can be manually operated via the bilge control panel. Available in 600, 800, 1000 and 1250 GPH versions. For Ultima Bilge 600 GPH to 1000 GPH, there are easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps. Pumps include both a