500 Gallon Per Hour Rule PWC bile pump. 3/4 outlet. Please see out bilge switches, outlets, and hose, to complete your installation. *NOTE* This style pump will NO longer work with our Yamaha SJ, and Kawasaki 440/550 type bilge mount backets. To use bilge mounts for these applications, use pump 20R (800GPH) or 27D (1100 GPH). This WILL work for Kawasaki SX/SXR type mounts.