Attwood’s tsunami aerator pumps deliver high output from a small package. Using the most advanced material available, including the best quality bearings and state-of-the-art brushes, alloys and magnets. Attwood's patented shaft seal prevents leaks caused by misalignment and our caulked and tinned wiring eliminates wicking, prevents water damage and resists corrosion. These replacement cartridge motor fit T500, T800, T1200 Tsunami bilge pumps and aerator pumps. Keep game fish and bait alive longer by provides fresh oxygen rich water to on-board live well tank. This pump does not require mounting brackets.