Ultima Bilge Pump. UltimaBilge Pumps are the latest addition to the Johnson Pump brand lineup. Integration of the Ultima field effect sensing technology into the bilge pump body creates a sleek, reliable and compact unit with integrated switch ready to install and run for years and years of unerring service. Available in 600-800-1000-1250 GPH versions. Voltage 12 V DC. For UltimaBilge 600 GPH-1000 GPH, we have easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps. These pumps will be delivered including both a straight and a 90 degree smooth elbow Dura-Port. All version are delivered with a removable check valve. The Ultima Bilge pumps may be manually operated via the Johnson Pump bilge. control panel. CE-Approved. Features Compact, all-in-one unit. Integrated Ultima Switch sensing right into the pump body. No Mercury. Removable clip on basket design. Removable impeller cover allows for easy clean out. 3-wire device can be ru UltimaBilge Pumps are the latest addition to the Johnson Pump brand lineup. Integration of the Ultim CE-Approved. Features No Mercury Removable clip on basket design Removable impeller cover allows for easy clean out