Tsunami Aerator Pumps T500. Inlet Length 3-1/2 . Inlet Diameter 3/4 . Outlet Style Inner Diameter Threaded 3/4 . With their innovative engineering and compact design, Tsunami pumps deliver high output from a small package. We use the most advanced material available, including the best quality bearings and state-of-the-art brushes, alloys and magnets. Our shaft seal prevents leaks caused by misalignment and our caulked and tinned wiring eliminates wicking, prevents water damage and resists corrosion. High-efficiency aerator pump that moves water at output capacities of 500 gph. With their innovative engineering and compact design, Tsunami pumps deliver high output from a small package. Output Performance Move more water and oxygen into livewell tanks to keep fish active. Cooler-running motors, premium materials, watertight seals and waterproof wiring. Cartridges are replaceable and interchangeable between bilge and aerator pumps Inlet Length 3-1/2 . Inlet Diameter 3/4 High-efficiency aerator pump that moves water at output capacities of 500 gph. With their innovative Cartridges are replaceable and interchangeable between bilge and aerator pumps